661626056

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1543}}^1$

素因数の和:1619

約数の個数: 128

約数和(自身を含む): 1660108800

約数和(自身を除く): 998482744

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 31, 38, 52, 56, 62, 76, 91, 104, 124, 133, 152, 182, 217, 247, 248, 266, 364, 403, 434, 494, 532, 589, 728, 806, 868, 988, 1064, 1178, 1543, 1612, 1729, 1736, 1976, 2356, 2821, 3086, 3224, 3458, 4123, 4712, 5642, 6172, 6916, 7657, 8246, 10801, 11284, 12344, 13832, 15314, 16492, 20059, 21602, 22568, 29317, 30628, 32984, 40118, 43204, 47833, 53599, 58634, 61256, 80236, 86408, 95666, 107198, 117268, 140413, 160472, 191332, 205219, 214396, 234536, 280826, 334831, 381121, 382664, 410438, 428792, 561652, 621829, 669662, 762242, 820876, 908827, 1123304, 1243658, 1339324, 1524484, 1641752, 1817654, 2487316, 2667847, 2678648, 3048968, 3635308, 4352803, 4974632, 5335694, 6361789, 7270616, 8705606, 10671388, 11814751, 12723578, 17411212, 21342776, 23629502, 25447156, 34822424, 47259004, 50894312, 82703257, 94518008, 165406514, 330813028, 661626056]

約数ペア:

[(1, 661626056), (2, 330813028), (4, 165406514), (7, 94518008), (8, 82703257), (13, 50894312), (14, 47259004), (19, 34822424), (26, 25447156), (28, 23629502), (31, 21342776), (38, 17411212), (52, 12723578), (56, 11814751), (62, 10671388), (76, 8705606), (91, 7270616), (104, 6361789), (124, 5335694), (133, 4974632), (152, 4352803), (182, 3635308), (217, 3048968), (247, 2678648), (248, 2667847), (266, 2487316), (364, 1817654), (403, 1641752), (434, 1524484), (494, 1339324), (532, 1243658), (589, 1123304), (728, 908827), (806, 820876), (868, 762242), (988, 669662), (1064, 621829), (1178, 561652), (1543, 428792), (1612, 410438), (1729, 382664), (1736, 381121), (1976, 334831), (2356, 280826), (2821, 234536), (3086, 214396), (3224, 205219), (3458, 191332), (4123, 160472), (4712, 140413), (5642, 117268), (6172, 107198), (6916, 95666), (7657, 86408), (8246, 80236), (10801, 61256), (11284, 58634), (12344, 53599), (13832, 47833), (15314, 43204), (16492, 40118), (20059, 32984), (21602, 30628), (22568, 29317)]