1987500000

素因数分解:

$2^5\times 3^1\times 5^8\times {\mathrm{53}}^1$

素因数の和:106

約数の個数: 216

約数和(自身を含む): 6644527848

約数和(自身を除く): 4657027848

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 53, 60, 75, 80, 96, 100, 106, 120, 125, 150, 159, 160, 200, 212, 240, 250, 265, 300, 318, 375, 400, 424, 480, 500, 530, 600, 625, 636, 750, 795, 800, 848, 1000, 1060, 1200, 1250, 1272, 1325, 1500, 1590, 1696, 1875, 2000, 2120, 2400, 2500, 2544, 2650, 3000, 3125, 3180, 3750, 3975, 4000, 4240, 5000, 5088, 5300, 6000, 6250, 6360, 6625, 7500, 7950, 8480, 9375, 10000, 10600, 12000, 12500, 12720, 13250, 15000, 15625, 15900, 18750, 19875, 20000, 21200, 25000, 25440, 26500, 30000, 31250, 31800, 33125, 37500, 39750, 42400, 46875, 50000, 53000, 60000, 62500, 63600, 66250, 75000, 78125, 79500, 93750, 99375, 100000, 106000, 125000, 127200, 132500, 150000, 156250, 159000, 165625, 187500, 198750, 212000, 234375, 250000, 265000, 300000, 312500, 318000, 331250, 375000, 390625, 397500, 468750, 496875, 500000, 530000, 625000, 636000, 662500, 750000, 781250, 795000, 828125, 937500, 993750, 1060000, 1171875, 1250000, 1325000, 1500000, 1562500, 1590000, 1656250, 1875000, 1987500, 2343750, 2484375, 2500000, 2650000, 3125000, 3180000, 3312500, 3750000, 3975000, 4140625, 4687500, 4968750, 5300000, 6250000, 6625000, 7500000, 7950000, 8281250, 9375000, 9937500, 12421875, 12500000, 13250000, 15900000, 16562500, 18750000, 19875000, 20703125, 24843750, 26500000, 33125000, 37500000, 39750000, 41406250, 49687500, 62109375, 66250000, 79500000, 82812500, 99375000, 124218750, 132500000, 165625000, 198750000, 248437500, 331250000, 397500000, 496875000, 662500000, 993750000, 1987500000]

約数ペア:

[(1, 1987500000), (2, 993750000), (3, 662500000), (4, 496875000), (5, 397500000), (6, 331250000), (8, 248437500), (10, 198750000), (12, 165625000), (15, 132500000), (16, 124218750), (20, 99375000), (24, 82812500), (25, 79500000), (30, 66250000), (32, 62109375), (40, 49687500), (48, 41406250), (50, 39750000), (53, 37500000), (60, 33125000), (75, 26500000), (80, 24843750), (96, 20703125), (100, 19875000), (106, 18750000), (120, 16562500), (125, 15900000), (150, 13250000), (159, 12500000), (160, 12421875), (200, 9937500), (212, 9375000), (240, 8281250), (250, 7950000), (265, 7500000), (300, 6625000), (318, 6250000), (375, 5300000), (400, 4968750), (424, 4687500), (480, 4140625), (500, 3975000), (530, 3750000), (600, 3312500), (625, 3180000), (636, 3125000), (750, 2650000), (795, 2500000), (800, 2484375), (848, 2343750), (1000, 1987500), (1060, 1875000), (1200, 1656250), (1250, 1590000), (1272, 1562500), (1325, 1500000), (1500, 1325000), (1590, 1250000), (1696, 1171875), (1875, 1060000), (2000, 993750), (2120, 937500), (2400, 828125), (2500, 795000), (2544, 781250), (2650, 750000), (3000, 662500), (3125, 636000), (3180, 625000), (3750, 530000), (3975, 500000), (4000, 496875), (4240, 468750), (5000, 397500), (5088, 390625), (5300, 375000), (6000, 331250), (6250, 318000), (6360, 312500), (6625, 300000), (7500, 265000), (7950, 250000), (8480, 234375), (9375, 212000), (10000, 198750), (10600, 187500), (12000, 165625), (12500, 159000), (12720, 156250), (13250, 150000), (15000, 132500), (15625, 127200), (15900, 125000), (18750, 106000), (19875, 100000), (20000, 99375), (21200, 93750), (25000, 79500), (25440, 78125), (26500, 75000), (30000, 66250), (31250, 63600), (31800, 62500), (33125, 60000), (37500, 53000), (39750, 50000), (42400, 46875)]