291129580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{419}}^1\times {\mathrm{709}}^1$

素因数の和:1151

約数の個数: 72

約数和(自身を含む): 713890800

約数和(自身を除く): 422761220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 419, 490, 709, 838, 980, 1418, 1676, 2095, 2836, 2933, 3545, 4190, 4963, 5866, 7090, 8380, 9926, 11732, 14180, 14665, 19852, 20531, 24815, 29330, 34741, 41062, 49630, 58660, 69482, 82124, 99260, 102655, 138964, 173705, 205310, 297071, 347410, 410620, 594142, 694820, 1188284, 1485355, 2079497, 2970710, 4158994, 5941420, 8317988, 10397485, 14556479, 20794970, 29112958, 41589940, 58225916, 72782395, 145564790, 291129580]

約数ペア:

[(1, 291129580), (2, 145564790), (4, 72782395), (5, 58225916), (7, 41589940), (10, 29112958), (14, 20794970), (20, 14556479), (28, 10397485), (35, 8317988), (49, 5941420), (70, 4158994), (98, 2970710), (140, 2079497), (196, 1485355), (245, 1188284), (419, 694820), (490, 594142), (709, 410620), (838, 347410), (980, 297071), (1418, 205310), (1676, 173705), (2095, 138964), (2836, 102655), (2933, 99260), (3545, 82124), (4190, 69482), (4963, 58660), (5866, 49630), (7090, 41062), (8380, 34741), (9926, 29330), (11732, 24815), (14180, 20531), (14665, 19852)]