7948980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:150

約数の個数: 144

約数和(自身を含む): 26906880

約数和(自身を除く): 18957900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 43, 45, 52, 60, 65, 78, 79, 86, 90, 117, 129, 130, 156, 158, 172, 180, 195, 215, 234, 237, 258, 260, 316, 387, 390, 395, 430, 468, 474, 516, 559, 585, 645, 711, 774, 780, 790, 860, 948, 1027, 1118, 1170, 1185, 1290, 1422, 1548, 1580, 1677, 1935, 2054, 2236, 2340, 2370, 2580, 2795, 2844, 3081, 3354, 3397, 3555, 3870, 4108, 4740, 5031, 5135, 5590, 6162, 6708, 6794, 7110, 7740, 8385, 9243, 10062, 10191, 10270, 11180, 12324, 13588, 14220, 15405, 16770, 16985, 18486, 20124, 20382, 20540, 25155, 30573, 30810, 33540, 33970, 36972, 40764, 44161, 46215, 50310, 50955, 61146, 61620, 67940, 88322, 92430, 100620, 101910, 122292, 132483, 152865, 176644, 184860, 203820, 220805, 264966, 305730, 397449, 441610, 529932, 611460, 662415, 794898, 883220, 1324830, 1589796, 1987245, 2649660, 3974490, 7948980]

約数ペア:

[(1, 7948980), (2, 3974490), (3, 2649660), (4, 1987245), (5, 1589796), (6, 1324830), (9, 883220), (10, 794898), (12, 662415), (13, 611460), (15, 529932), (18, 441610), (20, 397449), (26, 305730), (30, 264966), (36, 220805), (39, 203820), (43, 184860), (45, 176644), (52, 152865), (60, 132483), (65, 122292), (78, 101910), (79, 100620), (86, 92430), (90, 88322), (117, 67940), (129, 61620), (130, 61146), (156, 50955), (158, 50310), (172, 46215), (180, 44161), (195, 40764), (215, 36972), (234, 33970), (237, 33540), (258, 30810), (260, 30573), (316, 25155), (387, 20540), (390, 20382), (395, 20124), (430, 18486), (468, 16985), (474, 16770), (516, 15405), (559, 14220), (585, 13588), (645, 12324), (711, 11180), (774, 10270), (780, 10191), (790, 10062), (860, 9243), (948, 8385), (1027, 7740), (1118, 7110), (1170, 6794), (1185, 6708), (1290, 6162), (1422, 5590), (1548, 5135), (1580, 5031), (1677, 4740), (1935, 4108), (2054, 3870), (2236, 3555), (2340, 3397), (2370, 3354), (2580, 3081), (2795, 2844)]