20355120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1663}}^1$

素因数の和:1699

約数の個数: 120

約数和(自身を含む): 72423936

約数和(自身を除く): 52068816

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 45, 48, 51, 60, 68, 72, 80, 85, 90, 102, 120, 136, 144, 153, 170, 180, 204, 240, 255, 272, 306, 340, 360, 408, 510, 612, 680, 720, 765, 816, 1020, 1224, 1360, 1530, 1663, 2040, 2448, 3060, 3326, 4080, 4989, 6120, 6652, 8315, 9978, 12240, 13304, 14967, 16630, 19956, 24945, 26608, 28271, 29934, 33260, 39912, 49890, 56542, 59868, 66520, 74835, 79824, 84813, 99780, 113084, 119736, 133040, 141355, 149670, 169626, 199560, 226168, 239472, 254439, 282710, 299340, 339252, 399120, 424065, 452336, 508878, 565420, 598680, 678504, 848130, 1017756, 1130840, 1197360, 1272195, 1357008, 1696260, 2035512, 2261680, 2544390, 3392520, 4071024, 5088780, 6785040, 10177560, 20355120]

約数ペア:

[(1, 20355120), (2, 10177560), (3, 6785040), (4, 5088780), (5, 4071024), (6, 3392520), (8, 2544390), (9, 2261680), (10, 2035512), (12, 1696260), (15, 1357008), (16, 1272195), (17, 1197360), (18, 1130840), (20, 1017756), (24, 848130), (30, 678504), (34, 598680), (36, 565420), (40, 508878), (45, 452336), (48, 424065), (51, 399120), (60, 339252), (68, 299340), (72, 282710), (80, 254439), (85, 239472), (90, 226168), (102, 199560), (120, 169626), (136, 149670), (144, 141355), (153, 133040), (170, 119736), (180, 113084), (204, 99780), (240, 84813), (255, 79824), (272, 74835), (306, 66520), (340, 59868), (360, 56542), (408, 49890), (510, 39912), (612, 33260), (680, 29934), (720, 28271), (765, 26608), (816, 24945), (1020, 19956), (1224, 16630), (1360, 14967), (1530, 13304), (1663, 12240), (2040, 9978), (2448, 8315), (3060, 6652), (3326, 6120), (4080, 4989)]