421600000

素因数分解:

$2^8\times 5^5\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:89

約数の個数: 216

約数和(自身を含む): 1149676416

約数和(自身を除く): 728076416

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 31, 32, 34, 40, 50, 62, 64, 68, 80, 85, 100, 124, 125, 128, 136, 155, 160, 170, 200, 248, 250, 256, 272, 310, 320, 340, 400, 425, 496, 500, 527, 544, 620, 625, 640, 680, 775, 800, 850, 992, 1000, 1054, 1088, 1240, 1250, 1280, 1360, 1550, 1600, 1700, 1984, 2000, 2108, 2125, 2176, 2480, 2500, 2635, 2720, 3100, 3125, 3200, 3400, 3875, 3968, 4000, 4216, 4250, 4352, 4960, 5000, 5270, 5440, 6200, 6250, 6400, 6800, 7750, 7936, 8000, 8432, 8500, 9920, 10000, 10540, 10625, 10880, 12400, 12500, 13175, 13600, 15500, 16000, 16864, 17000, 19375, 19840, 20000, 21080, 21250, 21760, 24800, 25000, 26350, 27200, 31000, 32000, 33728, 34000, 38750, 39680, 40000, 42160, 42500, 49600, 50000, 52700, 53125, 54400, 62000, 65875, 67456, 68000, 77500, 80000, 84320, 85000, 96875, 99200, 100000, 105400, 106250, 108800, 124000, 131750, 134912, 136000, 155000, 160000, 168640, 170000, 193750, 198400, 200000, 210800, 212500, 248000, 263500, 272000, 310000, 329375, 337280, 340000, 387500, 400000, 421600, 425000, 496000, 527000, 544000, 620000, 658750, 674560, 680000, 775000, 800000, 843200, 850000, 992000, 1054000, 1240000, 1317500, 1360000, 1550000, 1646875, 1686400, 1700000, 2108000, 2480000, 2635000, 2720000, 3100000, 3293750, 3372800, 3400000, 4216000, 4960000, 5270000, 6200000, 6587500, 6800000, 8432000, 10540000, 12400000, 13175000, 13600000, 16864000, 21080000, 24800000, 26350000, 42160000, 52700000, 84320000, 105400000, 210800000, 421600000]

約数ペア:

[(1, 421600000), (2, 210800000), (4, 105400000), (5, 84320000), (8, 52700000), (10, 42160000), (16, 26350000), (17, 24800000), (20, 21080000), (25, 16864000), (31, 13600000), (32, 13175000), (34, 12400000), (40, 10540000), (50, 8432000), (62, 6800000), (64, 6587500), (68, 6200000), (80, 5270000), (85, 4960000), (100, 4216000), (124, 3400000), (125, 3372800), (128, 3293750), (136, 3100000), (155, 2720000), (160, 2635000), (170, 2480000), (200, 2108000), (248, 1700000), (250, 1686400), (256, 1646875), (272, 1550000), (310, 1360000), (320, 1317500), (340, 1240000), (400, 1054000), (425, 992000), (496, 850000), (500, 843200), (527, 800000), (544, 775000), (620, 680000), (625, 674560), (640, 658750), (680, 620000), (775, 544000), (800, 527000), (850, 496000), (992, 425000), (1000, 421600), (1054, 400000), (1088, 387500), (1240, 340000), (1250, 337280), (1280, 329375), (1360, 310000), (1550, 272000), (1600, 263500), (1700, 248000), (1984, 212500), (2000, 210800), (2108, 200000), (2125, 198400), (2176, 193750), (2480, 170000), (2500, 168640), (2635, 160000), (2720, 155000), (3100, 136000), (3125, 134912), (3200, 131750), (3400, 124000), (3875, 108800), (3968, 106250), (4000, 105400), (4216, 100000), (4250, 99200), (4352, 96875), (4960, 85000), (5000, 84320), (5270, 80000), (5440, 77500), (6200, 68000), (6250, 67456), (6400, 65875), (6800, 62000), (7750, 54400), (7936, 53125), (8000, 52700), (8432, 50000), (8500, 49600), (9920, 42500), (10000, 42160), (10540, 40000), (10625, 39680), (10880, 38750), (12400, 34000), (12500, 33728), (13175, 32000), (13600, 31000), (15500, 27200), (16000, 26350), (16864, 25000), (17000, 24800), (19375, 21760), (19840, 21250), (20000, 21080)]