31371970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{643}}^1$

素因数の和:715

約数の個数: 64

約数和(自身を含む): 70108416

約数和(自身を除く): 38736446

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 41, 70, 82, 85, 119, 170, 205, 238, 287, 410, 574, 595, 643, 697, 1190, 1286, 1394, 1435, 2870, 3215, 3485, 4501, 4879, 6430, 6970, 9002, 9758, 10931, 21862, 22505, 24395, 26363, 45010, 48790, 52726, 54655, 76517, 109310, 131815, 153034, 184541, 263630, 369082, 382585, 448171, 765170, 896342, 922705, 1845410, 2240855, 3137197, 4481710, 6274394, 15685985, 31371970]

約数ペア:

[(1, 31371970), (2, 15685985), (5, 6274394), (7, 4481710), (10, 3137197), (14, 2240855), (17, 1845410), (34, 922705), (35, 896342), (41, 765170), (70, 448171), (82, 382585), (85, 369082), (119, 263630), (170, 184541), (205, 153034), (238, 131815), (287, 109310), (410, 76517), (574, 54655), (595, 52726), (643, 48790), (697, 45010), (1190, 26363), (1286, 24395), (1394, 22505), (1435, 21862), (2870, 10931), (3215, 9758), (3485, 9002), (4501, 6970), (4879, 6430)]