81955300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:206

約数の個数: 144

約数和(自身を含む): 220485888

約数和(自身を除く): 138530588

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 25, 28, 34, 35, 50, 68, 70, 71, 85, 97, 100, 119, 140, 142, 170, 175, 194, 238, 284, 340, 350, 355, 388, 425, 476, 485, 497, 595, 679, 700, 710, 850, 970, 994, 1190, 1207, 1358, 1420, 1649, 1700, 1775, 1940, 1988, 2380, 2414, 2425, 2485, 2716, 2975, 3298, 3395, 3550, 4828, 4850, 4970, 5950, 6035, 6596, 6790, 6887, 7100, 8245, 8449, 9700, 9940, 11543, 11900, 12070, 12425, 13580, 13774, 16490, 16898, 16975, 23086, 24140, 24850, 27548, 30175, 32980, 33796, 33950, 34435, 41225, 42245, 46172, 48209, 49700, 57715, 60350, 67900, 68870, 82450, 84490, 96418, 115430, 117079, 120700, 137740, 164900, 168980, 172175, 192836, 211225, 230860, 234158, 241045, 288575, 344350, 422450, 468316, 482090, 577150, 585395, 688700, 819553, 844900, 964180, 1154300, 1170790, 1205225, 1639106, 2341580, 2410450, 2926975, 3278212, 4097765, 4820900, 5853950, 8195530, 11707900, 16391060, 20488825, 40977650, 81955300]

約数ペア:

[(1, 81955300), (2, 40977650), (4, 20488825), (5, 16391060), (7, 11707900), (10, 8195530), (14, 5853950), (17, 4820900), (20, 4097765), (25, 3278212), (28, 2926975), (34, 2410450), (35, 2341580), (50, 1639106), (68, 1205225), (70, 1170790), (71, 1154300), (85, 964180), (97, 844900), (100, 819553), (119, 688700), (140, 585395), (142, 577150), (170, 482090), (175, 468316), (194, 422450), (238, 344350), (284, 288575), (340, 241045), (350, 234158), (355, 230860), (388, 211225), (425, 192836), (476, 172175), (485, 168980), (497, 164900), (595, 137740), (679, 120700), (700, 117079), (710, 115430), (850, 96418), (970, 84490), (994, 82450), (1190, 68870), (1207, 67900), (1358, 60350), (1420, 57715), (1649, 49700), (1700, 48209), (1775, 46172), (1940, 42245), (1988, 41225), (2380, 34435), (2414, 33950), (2425, 33796), (2485, 32980), (2716, 30175), (2975, 27548), (3298, 24850), (3395, 24140), (3550, 23086), (4828, 16975), (4850, 16898), (4970, 16490), (5950, 13774), (6035, 13580), (6596, 12425), (6790, 12070), (6887, 11900), (7100, 11543), (8245, 9940), (8449, 9700)]