28742220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:272

約数の個数: 144

約数和(自身を含む): 95764032

約数和(自身を除く): 67021812

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 71, 78, 90, 117, 130, 142, 156, 173, 180, 195, 213, 234, 260, 284, 346, 355, 390, 426, 468, 519, 585, 639, 692, 710, 780, 852, 865, 923, 1038, 1065, 1170, 1278, 1420, 1557, 1730, 1846, 2076, 2130, 2249, 2340, 2556, 2595, 2769, 3114, 3195, 3460, 3692, 4260, 4498, 4615, 5190, 5538, 6228, 6390, 6747, 7785, 8307, 8996, 9230, 10380, 11076, 11245, 12283, 12780, 13494, 13845, 15570, 16614, 18460, 20241, 22490, 24566, 26988, 27690, 31140, 33228, 33735, 36849, 40482, 41535, 44980, 49132, 55380, 61415, 67470, 73698, 80964, 83070, 101205, 110547, 122830, 134940, 147396, 159679, 166140, 184245, 202410, 221094, 245660, 319358, 368490, 404820, 442188, 479037, 552735, 638716, 736980, 798395, 958074, 1105470, 1437111, 1596790, 1916148, 2210940, 2395185, 2874222, 3193580, 4790370, 5748444, 7185555, 9580740, 14371110, 28742220]

約数ペア:

[(1, 28742220), (2, 14371110), (3, 9580740), (4, 7185555), (5, 5748444), (6, 4790370), (9, 3193580), (10, 2874222), (12, 2395185), (13, 2210940), (15, 1916148), (18, 1596790), (20, 1437111), (26, 1105470), (30, 958074), (36, 798395), (39, 736980), (45, 638716), (52, 552735), (60, 479037), (65, 442188), (71, 404820), (78, 368490), (90, 319358), (117, 245660), (130, 221094), (142, 202410), (156, 184245), (173, 166140), (180, 159679), (195, 147396), (213, 134940), (234, 122830), (260, 110547), (284, 101205), (346, 83070), (355, 80964), (390, 73698), (426, 67470), (468, 61415), (519, 55380), (585, 49132), (639, 44980), (692, 41535), (710, 40482), (780, 36849), (852, 33735), (865, 33228), (923, 31140), (1038, 27690), (1065, 26988), (1170, 24566), (1278, 22490), (1420, 20241), (1557, 18460), (1730, 16614), (1846, 15570), (2076, 13845), (2130, 13494), (2249, 12780), (2340, 12283), (2556, 11245), (2595, 11076), (2769, 10380), (3114, 9230), (3195, 8996), (3460, 8307), (3692, 7785), (4260, 6747), (4498, 6390), (4615, 6228), (5190, 5538)]