209252480

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:302

約数の個数: 128

約数和(自身を含む): 528768000

約数和(自身を除く): 319515520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 53, 62, 64, 80, 106, 124, 128, 155, 160, 199, 212, 248, 265, 310, 320, 398, 424, 496, 530, 620, 640, 796, 848, 992, 995, 1060, 1240, 1592, 1643, 1696, 1984, 1990, 2120, 2480, 3184, 3286, 3392, 3968, 3980, 4240, 4960, 6169, 6368, 6572, 6784, 7960, 8215, 8480, 9920, 10547, 12338, 12736, 13144, 15920, 16430, 16960, 19840, 21094, 24676, 25472, 26288, 30845, 31840, 32860, 33920, 42188, 49352, 52576, 52735, 61690, 63680, 65720, 84376, 98704, 105152, 105470, 123380, 127360, 131440, 168752, 197408, 210304, 210940, 246760, 262880, 326957, 337504, 394816, 421880, 493520, 525760, 653914, 675008, 789632, 843760, 987040, 1051520, 1307828, 1350016, 1634785, 1687520, 1974080, 2615656, 3269570, 3375040, 3948160, 5231312, 6539140, 6750080, 10462624, 13078280, 20925248, 26156560, 41850496, 52313120, 104626240, 209252480]

約数ペア:

[(1, 209252480), (2, 104626240), (4, 52313120), (5, 41850496), (8, 26156560), (10, 20925248), (16, 13078280), (20, 10462624), (31, 6750080), (32, 6539140), (40, 5231312), (53, 3948160), (62, 3375040), (64, 3269570), (80, 2615656), (106, 1974080), (124, 1687520), (128, 1634785), (155, 1350016), (160, 1307828), (199, 1051520), (212, 987040), (248, 843760), (265, 789632), (310, 675008), (320, 653914), (398, 525760), (424, 493520), (496, 421880), (530, 394816), (620, 337504), (640, 326957), (796, 262880), (848, 246760), (992, 210940), (995, 210304), (1060, 197408), (1240, 168752), (1592, 131440), (1643, 127360), (1696, 123380), (1984, 105470), (1990, 105152), (2120, 98704), (2480, 84376), (3184, 65720), (3286, 63680), (3392, 61690), (3968, 52735), (3980, 52576), (4240, 49352), (4960, 42188), (6169, 33920), (6368, 32860), (6572, 31840), (6784, 30845), (7960, 26288), (8215, 25472), (8480, 24676), (9920, 21094), (10547, 19840), (12338, 16960), (12736, 16430), (13144, 15920)]