20146360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:137

約数の個数: 128

約数和(自身を含む): 53887680

約数和(自身を除く): 33741320

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 43, 52, 53, 65, 68, 85, 86, 104, 106, 130, 136, 170, 172, 212, 215, 221, 260, 265, 340, 344, 424, 430, 442, 520, 530, 559, 680, 689, 731, 860, 884, 901, 1060, 1105, 1118, 1378, 1462, 1720, 1768, 1802, 2120, 2210, 2236, 2279, 2756, 2795, 2924, 3445, 3604, 3655, 4420, 4472, 4505, 4558, 5512, 5590, 5848, 6890, 7208, 7310, 8840, 9010, 9116, 9503, 11180, 11395, 11713, 13780, 14620, 18020, 18232, 19006, 22360, 22790, 23426, 27560, 29240, 29627, 36040, 38012, 38743, 45580, 46852, 47515, 58565, 59254, 76024, 77486, 91160, 93704, 95030, 117130, 118508, 148135, 154972, 190060, 193715, 234260, 237016, 296270, 309944, 380120, 387430, 468520, 503659, 592540, 774860, 1007318, 1185080, 1549720, 2014636, 2518295, 4029272, 5036590, 10073180, 20146360]

約数ペア:

[(1, 20146360), (2, 10073180), (4, 5036590), (5, 4029272), (8, 2518295), (10, 2014636), (13, 1549720), (17, 1185080), (20, 1007318), (26, 774860), (34, 592540), (40, 503659), (43, 468520), (52, 387430), (53, 380120), (65, 309944), (68, 296270), (85, 237016), (86, 234260), (104, 193715), (106, 190060), (130, 154972), (136, 148135), (170, 118508), (172, 117130), (212, 95030), (215, 93704), (221, 91160), (260, 77486), (265, 76024), (340, 59254), (344, 58565), (424, 47515), (430, 46852), (442, 45580), (520, 38743), (530, 38012), (559, 36040), (680, 29627), (689, 29240), (731, 27560), (860, 23426), (884, 22790), (901, 22360), (1060, 19006), (1105, 18232), (1118, 18020), (1378, 14620), (1462, 13780), (1720, 11713), (1768, 11395), (1802, 11180), (2120, 9503), (2210, 9116), (2236, 9010), (2279, 8840), (2756, 7310), (2795, 7208), (2924, 6890), (3445, 5848), (3604, 5590), (3655, 5512), (4420, 4558), (4472, 4505)]