31371340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1567}}^1$

素因数の和:1607

約数の個数: 96

約数和(自身を含む): 88510464

約数和(自身を除く): 57139124

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 182, 220, 260, 286, 308, 364, 385, 455, 572, 715, 770, 910, 1001, 1430, 1540, 1567, 1820, 2002, 2860, 3134, 4004, 5005, 6268, 7835, 10010, 10969, 15670, 17237, 20020, 20371, 21938, 31340, 34474, 40742, 43876, 54845, 68948, 81484, 86185, 101855, 109690, 120659, 142597, 172370, 203710, 219380, 224081, 241318, 285194, 344740, 407420, 448162, 482636, 570388, 603295, 712985, 896324, 1120405, 1206590, 1425970, 1568567, 2240810, 2413180, 2851940, 3137134, 4481620, 6274268, 7842835, 15685670, 31371340]

約数ペア:

[(1, 31371340), (2, 15685670), (4, 7842835), (5, 6274268), (7, 4481620), (10, 3137134), (11, 2851940), (13, 2413180), (14, 2240810), (20, 1568567), (22, 1425970), (26, 1206590), (28, 1120405), (35, 896324), (44, 712985), (52, 603295), (55, 570388), (65, 482636), (70, 448162), (77, 407420), (91, 344740), (110, 285194), (130, 241318), (140, 224081), (143, 219380), (154, 203710), (182, 172370), (220, 142597), (260, 120659), (286, 109690), (308, 101855), (364, 86185), (385, 81484), (455, 68948), (572, 54845), (715, 43876), (770, 40742), (910, 34474), (1001, 31340), (1430, 21938), (1540, 20371), (1567, 20020), (1820, 17237), (2002, 15670), (2860, 10969), (3134, 10010), (4004, 7835), (5005, 6268)]