81239460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{433}}^1$

素因数の和:557

約数の個数: 96

約数和(自身を含む): 236234880

約数和(自身を除く): 154995420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 59, 60, 106, 118, 159, 177, 212, 236, 265, 295, 318, 354, 433, 530, 590, 636, 708, 795, 866, 885, 1060, 1180, 1299, 1590, 1732, 1770, 2165, 2598, 3127, 3180, 3540, 4330, 5196, 6254, 6495, 8660, 9381, 12508, 12990, 15635, 18762, 22949, 25547, 25980, 31270, 37524, 45898, 46905, 51094, 62540, 68847, 76641, 91796, 93810, 102188, 114745, 127735, 137694, 153282, 187620, 229490, 255470, 275388, 306564, 344235, 383205, 458980, 510940, 688470, 766410, 1353991, 1376940, 1532820, 2707982, 4061973, 5415964, 6769955, 8123946, 13539910, 16247892, 20309865, 27079820, 40619730, 81239460]

約数ペア:

[(1, 81239460), (2, 40619730), (3, 27079820), (4, 20309865), (5, 16247892), (6, 13539910), (10, 8123946), (12, 6769955), (15, 5415964), (20, 4061973), (30, 2707982), (53, 1532820), (59, 1376940), (60, 1353991), (106, 766410), (118, 688470), (159, 510940), (177, 458980), (212, 383205), (236, 344235), (265, 306564), (295, 275388), (318, 255470), (354, 229490), (433, 187620), (530, 153282), (590, 137694), (636, 127735), (708, 114745), (795, 102188), (866, 93810), (885, 91796), (1060, 76641), (1180, 68847), (1299, 62540), (1590, 51094), (1732, 46905), (1770, 45898), (2165, 37524), (2598, 31270), (3127, 25980), (3180, 25547), (3540, 22949), (4330, 18762), (5196, 15635), (6254, 12990), (6495, 12508), (8660, 9381)]