25178020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:253

約数の個数: 96

約数和(自身を含む): 65318400

約数和(自身を除く): 40140380

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 71, 85, 119, 140, 142, 149, 170, 238, 284, 298, 340, 355, 476, 497, 595, 596, 710, 745, 994, 1043, 1190, 1207, 1420, 1490, 1988, 2086, 2380, 2414, 2485, 2533, 2980, 4172, 4828, 4970, 5066, 5215, 6035, 8449, 9940, 10132, 10430, 10579, 12070, 12665, 16898, 17731, 20860, 21158, 24140, 25330, 33796, 35462, 42245, 42316, 50660, 52895, 70924, 74053, 84490, 88655, 105790, 148106, 168980, 177310, 179843, 211580, 296212, 354620, 359686, 370265, 719372, 740530, 899215, 1258901, 1481060, 1798430, 2517802, 3596860, 5035604, 6294505, 12589010, 25178020]

約数ペア:

[(1, 25178020), (2, 12589010), (4, 6294505), (5, 5035604), (7, 3596860), (10, 2517802), (14, 1798430), (17, 1481060), (20, 1258901), (28, 899215), (34, 740530), (35, 719372), (68, 370265), (70, 359686), (71, 354620), (85, 296212), (119, 211580), (140, 179843), (142, 177310), (149, 168980), (170, 148106), (238, 105790), (284, 88655), (298, 84490), (340, 74053), (355, 70924), (476, 52895), (497, 50660), (595, 42316), (596, 42245), (710, 35462), (745, 33796), (994, 25330), (1043, 24140), (1190, 21158), (1207, 20860), (1420, 17731), (1490, 16898), (1988, 12665), (2086, 12070), (2380, 10579), (2414, 10430), (2485, 10132), (2533, 9940), (2980, 8449), (4172, 6035), (4828, 5215), (4970, 5066)]