81698680

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{571}}^1$

素因数の和:669

約数の個数: 96

約数和(自身を含む): 217142640

約数和(自身を除く): 135443960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 73, 98, 140, 146, 196, 245, 280, 292, 365, 392, 490, 511, 571, 584, 730, 980, 1022, 1142, 1460, 1960, 2044, 2284, 2555, 2855, 2920, 3577, 3997, 4088, 4568, 5110, 5710, 7154, 7994, 10220, 11420, 14308, 15988, 17885, 19985, 20440, 22840, 27979, 28616, 31976, 35770, 39970, 41683, 55958, 71540, 79940, 83366, 111916, 139895, 143080, 159880, 166732, 208415, 223832, 279790, 291781, 333464, 416830, 559580, 583562, 833660, 1119160, 1167124, 1458905, 1667320, 2042467, 2334248, 2917810, 4084934, 5835620, 8169868, 10212335, 11671240, 16339736, 20424670, 40849340, 81698680]

約数ペア:

[(1, 81698680), (2, 40849340), (4, 20424670), (5, 16339736), (7, 11671240), (8, 10212335), (10, 8169868), (14, 5835620), (20, 4084934), (28, 2917810), (35, 2334248), (40, 2042467), (49, 1667320), (56, 1458905), (70, 1167124), (73, 1119160), (98, 833660), (140, 583562), (146, 559580), (196, 416830), (245, 333464), (280, 291781), (292, 279790), (365, 223832), (392, 208415), (490, 166732), (511, 159880), (571, 143080), (584, 139895), (730, 111916), (980, 83366), (1022, 79940), (1142, 71540), (1460, 55958), (1960, 41683), (2044, 39970), (2284, 35770), (2555, 31976), (2855, 28616), (2920, 27979), (3577, 22840), (3997, 20440), (4088, 19985), (4568, 17885), (5110, 15988), (5710, 14308), (7154, 11420), (7994, 10220)]