257956140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{7691}}^1$

素因数の和:7759

約数の個数: 96

約数和(自身を含む): 796029696

約数和(自身を除く): 538073556

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 43, 52, 60, 65, 78, 86, 129, 130, 156, 172, 195, 215, 258, 260, 390, 430, 516, 559, 645, 780, 860, 1118, 1290, 1677, 2236, 2580, 2795, 3354, 5590, 6708, 7691, 8385, 11180, 15382, 16770, 23073, 30764, 33540, 38455, 46146, 76910, 92292, 99983, 115365, 153820, 199966, 230730, 299949, 330713, 399932, 461460, 499915, 599898, 661426, 992139, 999830, 1199796, 1322852, 1499745, 1653565, 1984278, 1999660, 2999490, 3307130, 3968556, 4299269, 4960695, 5998980, 6614260, 8598538, 9921390, 12897807, 17197076, 19842780, 21496345, 25795614, 42992690, 51591228, 64489035, 85985380, 128978070, 257956140]

約数ペア:

[(1, 257956140), (2, 128978070), (3, 85985380), (4, 64489035), (5, 51591228), (6, 42992690), (10, 25795614), (12, 21496345), (13, 19842780), (15, 17197076), (20, 12897807), (26, 9921390), (30, 8598538), (39, 6614260), (43, 5998980), (52, 4960695), (60, 4299269), (65, 3968556), (78, 3307130), (86, 2999490), (129, 1999660), (130, 1984278), (156, 1653565), (172, 1499745), (195, 1322852), (215, 1199796), (258, 999830), (260, 992139), (390, 661426), (430, 599898), (516, 499915), (559, 461460), (645, 399932), (780, 330713), (860, 299949), (1118, 230730), (1290, 199966), (1677, 153820), (2236, 115365), (2580, 99983), (2795, 92292), (3354, 76910), (5590, 46146), (6708, 38455), (7691, 33540), (8385, 30764), (11180, 23073), (15382, 16770)]