19567980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1$

素因数の和:325

約数の個数: 120

約数和(自身を含む): 62935488

約数和(自身を除く): 43367508

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 47, 54, 60, 81, 90, 94, 108, 135, 141, 162, 180, 188, 235, 257, 270, 282, 324, 405, 423, 470, 514, 540, 564, 705, 771, 810, 846, 940, 1028, 1269, 1285, 1410, 1542, 1620, 1692, 2115, 2313, 2538, 2570, 2820, 3084, 3807, 3855, 4230, 4626, 5076, 5140, 6345, 6939, 7614, 7710, 8460, 9252, 11565, 12079, 12690, 13878, 15228, 15420, 19035, 20817, 23130, 24158, 25380, 27756, 34695, 36237, 38070, 41634, 46260, 48316, 60395, 69390, 72474, 76140, 83268, 104085, 108711, 120790, 138780, 144948, 181185, 208170, 217422, 241580, 326133, 362370, 416340, 434844, 543555, 652266, 724740, 978399, 1087110, 1304532, 1630665, 1956798, 2174220, 3261330, 3913596, 4891995, 6522660, 9783990, 19567980]

約数ペア:

[(1, 19567980), (2, 9783990), (3, 6522660), (4, 4891995), (5, 3913596), (6, 3261330), (9, 2174220), (10, 1956798), (12, 1630665), (15, 1304532), (18, 1087110), (20, 978399), (27, 724740), (30, 652266), (36, 543555), (45, 434844), (47, 416340), (54, 362370), (60, 326133), (81, 241580), (90, 217422), (94, 208170), (108, 181185), (135, 144948), (141, 138780), (162, 120790), (180, 108711), (188, 104085), (235, 83268), (257, 76140), (270, 72474), (282, 69390), (324, 60395), (405, 48316), (423, 46260), (470, 41634), (514, 38070), (540, 36237), (564, 34695), (705, 27756), (771, 25380), (810, 24158), (846, 23130), (940, 20817), (1028, 19035), (1269, 15420), (1285, 15228), (1410, 13878), (1542, 12690), (1620, 12079), (1692, 11565), (2115, 9252), (2313, 8460), (2538, 7710), (2570, 7614), (2820, 6939), (3084, 6345), (3807, 5140), (3855, 5076), (4230, 4626)]