31480020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1223}}^1$

素因数の和:1262

約数の個数: 144

約数和(自身を含む): 112275072

約数和(自身を除く): 80795052

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 30, 33, 36, 39, 44, 45, 52, 55, 60, 65, 66, 78, 90, 99, 110, 117, 130, 132, 143, 156, 165, 180, 195, 198, 220, 234, 260, 286, 330, 390, 396, 429, 468, 495, 572, 585, 660, 715, 780, 858, 990, 1170, 1223, 1287, 1430, 1716, 1980, 2145, 2340, 2446, 2574, 2860, 3669, 4290, 4892, 5148, 6115, 6435, 7338, 8580, 11007, 12230, 12870, 13453, 14676, 15899, 18345, 22014, 24460, 25740, 26906, 31798, 36690, 40359, 44028, 47697, 53812, 55035, 63596, 67265, 73380, 79495, 80718, 95394, 110070, 121077, 134530, 143091, 158990, 161436, 174889, 190788, 201795, 220140, 238485, 242154, 269060, 286182, 317980, 349778, 403590, 476970, 484308, 524667, 572364, 605385, 699556, 715455, 807180, 874445, 953940, 1049334, 1210770, 1430910, 1574001, 1748890, 2098668, 2421540, 2623335, 2861820, 3148002, 3497780, 5246670, 6296004, 7870005, 10493340, 15740010, 31480020]

約数ペア:

[(1, 31480020), (2, 15740010), (3, 10493340), (4, 7870005), (5, 6296004), (6, 5246670), (9, 3497780), (10, 3148002), (11, 2861820), (12, 2623335), (13, 2421540), (15, 2098668), (18, 1748890), (20, 1574001), (22, 1430910), (26, 1210770), (30, 1049334), (33, 953940), (36, 874445), (39, 807180), (44, 715455), (45, 699556), (52, 605385), (55, 572364), (60, 524667), (65, 484308), (66, 476970), (78, 403590), (90, 349778), (99, 317980), (110, 286182), (117, 269060), (130, 242154), (132, 238485), (143, 220140), (156, 201795), (165, 190788), (180, 174889), (195, 161436), (198, 158990), (220, 143091), (234, 134530), (260, 121077), (286, 110070), (330, 95394), (390, 80718), (396, 79495), (429, 73380), (468, 67265), (495, 63596), (572, 55035), (585, 53812), (660, 47697), (715, 44028), (780, 40359), (858, 36690), (990, 31798), (1170, 26906), (1223, 25740), (1287, 24460), (1430, 22014), (1716, 18345), (1980, 15899), (2145, 14676), (2340, 13453), (2446, 12870), (2574, 12230), (2860, 11007), (3669, 8580), (4290, 7338), (4892, 6435), (5148, 6115)]