815262980

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{118843}}^1$

素因数の和:118873

約数の個数: 48

約数和(自身を含む): 1996579200

約数和(自身を除く): 1181316220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 118843, 237686, 475372, 594215, 831901, 1188430, 1663802, 2376860, 3327604, 4159505, 5823307, 8319010, 11646614, 16638020, 23293228, 29116535, 40763149, 58233070, 81526298, 116466140, 163052596, 203815745, 407631490, 815262980]

約数ペア:

[(1, 815262980), (2, 407631490), (4, 203815745), (5, 163052596), (7, 116466140), (10, 81526298), (14, 58233070), (20, 40763149), (28, 29116535), (35, 23293228), (49, 16638020), (70, 11646614), (98, 8319010), (140, 5823307), (196, 4159505), (245, 3327604), (343, 2376860), (490, 1663802), (686, 1188430), (980, 831901), (1372, 594215), (1715, 475372), (3430, 237686), (6860, 118843)]