87758020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{601}}^1$

素因数の和:773

約数の個数: 72

約数和(自身を含む): 216178200

約数和(自身を除く): 128420180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 149, 196, 245, 298, 490, 596, 601, 745, 980, 1043, 1202, 1490, 2086, 2404, 2980, 3005, 4172, 4207, 5215, 6010, 7301, 8414, 10430, 12020, 14602, 16828, 20860, 21035, 29204, 29449, 36505, 42070, 58898, 73010, 84140, 89549, 117796, 146020, 147245, 179098, 294490, 358196, 447745, 588980, 626843, 895490, 1253686, 1790980, 2507372, 3134215, 4387901, 6268430, 8775802, 12536860, 17551604, 21939505, 43879010, 87758020]

約数ペア:

[(1, 87758020), (2, 43879010), (4, 21939505), (5, 17551604), (7, 12536860), (10, 8775802), (14, 6268430), (20, 4387901), (28, 3134215), (35, 2507372), (49, 1790980), (70, 1253686), (98, 895490), (140, 626843), (149, 588980), (196, 447745), (245, 358196), (298, 294490), (490, 179098), (596, 147245), (601, 146020), (745, 117796), (980, 89549), (1043, 84140), (1202, 73010), (1490, 58898), (2086, 42070), (2404, 36505), (2980, 29449), (3005, 29204), (4172, 21035), (4207, 20860), (5215, 16828), (6010, 14602), (7301, 12020), (8414, 10430)]