261233388

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{4261}}^1$

素因数の和:4415

約数の個数: 72

約数和(自身を含む): 716732016

約数和(自身を除く): 455498628

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 131, 156, 234, 262, 393, 468, 524, 786, 1179, 1572, 1703, 2358, 3406, 4261, 4716, 5109, 6812, 8522, 10218, 12783, 15327, 17044, 20436, 25566, 30654, 38349, 51132, 55393, 61308, 76698, 110786, 153396, 166179, 221572, 332358, 498537, 558191, 664716, 997074, 1116382, 1674573, 1994148, 2232764, 3349146, 5023719, 6698292, 7256483, 10047438, 14512966, 20094876, 21769449, 29025932, 43538898, 65308347, 87077796, 130616694, 261233388]

約数ペア:

[(1, 261233388), (2, 130616694), (3, 87077796), (4, 65308347), (6, 43538898), (9, 29025932), (12, 21769449), (13, 20094876), (18, 14512966), (26, 10047438), (36, 7256483), (39, 6698292), (52, 5023719), (78, 3349146), (117, 2232764), (131, 1994148), (156, 1674573), (234, 1116382), (262, 997074), (393, 664716), (468, 558191), (524, 498537), (786, 332358), (1179, 221572), (1572, 166179), (1703, 153396), (2358, 110786), (3406, 76698), (4261, 61308), (4716, 55393), (5109, 51132), (6812, 38349), (8522, 30654), (10218, 25566), (12783, 20436), (15327, 17044)]