18882500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1$

素因数の和:127

約数の個数: 120

約数和(自身を含む): 51433536

約数和(自身を除く): 32551036

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 83, 91, 100, 125, 130, 140, 166, 175, 182, 250, 260, 325, 332, 350, 364, 415, 455, 500, 581, 625, 650, 700, 830, 875, 910, 1079, 1162, 1250, 1300, 1625, 1660, 1750, 1820, 2075, 2158, 2275, 2324, 2500, 2905, 3250, 3500, 4150, 4316, 4375, 4550, 5395, 5810, 6500, 7553, 8125, 8300, 8750, 9100, 10375, 10790, 11375, 11620, 14525, 15106, 16250, 17500, 20750, 21580, 22750, 26975, 29050, 30212, 32500, 37765, 41500, 45500, 51875, 53950, 56875, 58100, 72625, 75530, 103750, 107900, 113750, 134875, 145250, 151060, 188825, 207500, 227500, 269750, 290500, 363125, 377650, 539500, 674375, 726250, 755300, 944125, 1348750, 1452500, 1888250, 2697500, 3776500, 4720625, 9441250, 18882500]

約数ペア:

[(1, 18882500), (2, 9441250), (4, 4720625), (5, 3776500), (7, 2697500), (10, 1888250), (13, 1452500), (14, 1348750), (20, 944125), (25, 755300), (26, 726250), (28, 674375), (35, 539500), (50, 377650), (52, 363125), (65, 290500), (70, 269750), (83, 227500), (91, 207500), (100, 188825), (125, 151060), (130, 145250), (140, 134875), (166, 113750), (175, 107900), (182, 103750), (250, 75530), (260, 72625), (325, 58100), (332, 56875), (350, 53950), (364, 51875), (415, 45500), (455, 41500), (500, 37765), (581, 32500), (625, 30212), (650, 29050), (700, 26975), (830, 22750), (875, 21580), (910, 20750), (1079, 17500), (1162, 16250), (1250, 15106), (1300, 14525), (1625, 11620), (1660, 11375), (1750, 10790), (1820, 10375), (2075, 9100), (2158, 8750), (2275, 8300), (2324, 8125), (2500, 7553), (2905, 6500), (3250, 5810), (3500, 5395), (4150, 4550), (4316, 4375)]