15219540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1$

素因数の和:326

約数の個数: 144

約数和(自身を含む): 54093312

約数和(自身を除く): 38873772

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 47, 60, 63, 70, 84, 90, 94, 105, 126, 140, 141, 180, 188, 210, 235, 252, 257, 282, 315, 329, 420, 423, 470, 514, 564, 630, 658, 705, 771, 846, 940, 987, 1028, 1260, 1285, 1316, 1410, 1542, 1645, 1692, 1799, 1974, 2115, 2313, 2570, 2820, 2961, 3084, 3290, 3598, 3855, 3948, 4230, 4626, 4935, 5140, 5397, 5922, 6580, 7196, 7710, 8460, 8995, 9252, 9870, 10794, 11565, 11844, 12079, 14805, 15420, 16191, 17990, 19740, 21588, 23130, 24158, 26985, 29610, 32382, 35980, 36237, 46260, 48316, 53970, 59220, 60395, 64764, 72474, 80955, 84553, 107940, 108711, 120790, 144948, 161910, 169106, 181185, 217422, 241580, 253659, 323820, 338212, 362370, 422765, 434844, 507318, 543555, 724740, 760977, 845530, 1014636, 1087110, 1268295, 1521954, 1691060, 2174220, 2536590, 3043908, 3804885, 5073180, 7609770, 15219540]

約数ペア:

[(1, 15219540), (2, 7609770), (3, 5073180), (4, 3804885), (5, 3043908), (6, 2536590), (7, 2174220), (9, 1691060), (10, 1521954), (12, 1268295), (14, 1087110), (15, 1014636), (18, 845530), (20, 760977), (21, 724740), (28, 543555), (30, 507318), (35, 434844), (36, 422765), (42, 362370), (45, 338212), (47, 323820), (60, 253659), (63, 241580), (70, 217422), (84, 181185), (90, 169106), (94, 161910), (105, 144948), (126, 120790), (140, 108711), (141, 107940), (180, 84553), (188, 80955), (210, 72474), (235, 64764), (252, 60395), (257, 59220), (282, 53970), (315, 48316), (329, 46260), (420, 36237), (423, 35980), (470, 32382), (514, 29610), (564, 26985), (630, 24158), (658, 23130), (705, 21588), (771, 19740), (846, 17990), (940, 16191), (987, 15420), (1028, 14805), (1260, 12079), (1285, 11844), (1316, 11565), (1410, 10794), (1542, 9870), (1645, 9252), (1692, 8995), (1799, 8460), (1974, 7710), (2115, 7196), (2313, 6580), (2570, 5922), (2820, 5397), (2961, 5140), (3084, 4935), (3290, 4626), (3598, 4230), (3855, 3948)]