20482800

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{101}}^1$

素因数の和:148

約数の個数: 180

約数和(自身を含む): 71752104

約数和(自身を除く): 51269304

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 39, 40, 48, 50, 52, 60, 65, 75, 78, 80, 100, 101, 104, 120, 130, 150, 156, 169, 195, 200, 202, 208, 240, 260, 300, 303, 312, 325, 338, 390, 400, 404, 505, 507, 520, 600, 606, 624, 650, 676, 780, 808, 845, 975, 1010, 1014, 1040, 1200, 1212, 1300, 1313, 1352, 1515, 1560, 1616, 1690, 1950, 2020, 2028, 2424, 2525, 2535, 2600, 2626, 2704, 3030, 3120, 3380, 3900, 3939, 4040, 4056, 4225, 4848, 5050, 5070, 5200, 5252, 6060, 6565, 6760, 7575, 7800, 7878, 8080, 8112, 8450, 10100, 10140, 10504, 12120, 12675, 13130, 13520, 15150, 15600, 15756, 16900, 17069, 19695, 20200, 20280, 21008, 24240, 25350, 26260, 30300, 31512, 32825, 33800, 34138, 39390, 40400, 40560, 50700, 51207, 52520, 60600, 63024, 65650, 67600, 68276, 78780, 85345, 98475, 101400, 102414, 105040, 121200, 131300, 136552, 157560, 170690, 196950, 202800, 204828, 256035, 262600, 273104, 315120, 341380, 393900, 409656, 426725, 512070, 525200, 682760, 787800, 819312, 853450, 1024140, 1280175, 1365520, 1575600, 1706900, 2048280, 2560350, 3413800, 4096560, 5120700, 6827600, 10241400, 20482800]

約数ペア:

[(1, 20482800), (2, 10241400), (3, 6827600), (4, 5120700), (5, 4096560), (6, 3413800), (8, 2560350), (10, 2048280), (12, 1706900), (13, 1575600), (15, 1365520), (16, 1280175), (20, 1024140), (24, 853450), (25, 819312), (26, 787800), (30, 682760), (39, 525200), (40, 512070), (48, 426725), (50, 409656), (52, 393900), (60, 341380), (65, 315120), (75, 273104), (78, 262600), (80, 256035), (100, 204828), (101, 202800), (104, 196950), (120, 170690), (130, 157560), (150, 136552), (156, 131300), (169, 121200), (195, 105040), (200, 102414), (202, 101400), (208, 98475), (240, 85345), (260, 78780), (300, 68276), (303, 67600), (312, 65650), (325, 63024), (338, 60600), (390, 52520), (400, 51207), (404, 50700), (505, 40560), (507, 40400), (520, 39390), (600, 34138), (606, 33800), (624, 32825), (650, 31512), (676, 30300), (780, 26260), (808, 25350), (845, 24240), (975, 21008), (1010, 20280), (1014, 20200), (1040, 19695), (1200, 17069), (1212, 16900), (1300, 15756), (1313, 15600), (1352, 15150), (1515, 13520), (1560, 13130), (1616, 12675), (1690, 12120), (1950, 10504), (2020, 10140), (2028, 10100), (2424, 8450), (2525, 8112), (2535, 8080), (2600, 7878), (2626, 7800), (2704, 7575), (3030, 6760), (3120, 6565), (3380, 6060), (3900, 5252), (3939, 5200), (4040, 5070), (4056, 5050), (4225, 4848)]