278657028

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{227}}^1$

素因数の和:354

約数の個数: 144

約数和(自身を含む): 792407616

約数和(自身を除く): 513750588

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 43, 52, 61, 78, 86, 117, 122, 129, 156, 172, 183, 227, 234, 244, 258, 366, 387, 454, 468, 516, 549, 559, 681, 732, 774, 793, 908, 1098, 1118, 1362, 1548, 1586, 1677, 2043, 2196, 2236, 2379, 2623, 2724, 2951, 3172, 3354, 4086, 4758, 5031, 5246, 5902, 6708, 7137, 7869, 8172, 8853, 9516, 9761, 10062, 10492, 11804, 13847, 14274, 15738, 17706, 19522, 20124, 23607, 26559, 27694, 28548, 29283, 31476, 34099, 35412, 39044, 41541, 47214, 53118, 55388, 58566, 68198, 83082, 87849, 94428, 102297, 106236, 117132, 124623, 126893, 136396, 166164, 175698, 180011, 204594, 249246, 253786, 306891, 351396, 360022, 380679, 409188, 498492, 507572, 540033, 595421, 613782, 720044, 761358, 1080066, 1142037, 1190842, 1227564, 1522716, 1620099, 1786263, 2160132, 2284074, 2381684, 3240198, 3572526, 4568148, 5358789, 6480396, 7145052, 7740473, 10717578, 15480946, 21435156, 23221419, 30961892, 46442838, 69664257, 92885676, 139328514, 278657028]

約数ペア:

[(1, 278657028), (2, 139328514), (3, 92885676), (4, 69664257), (6, 46442838), (9, 30961892), (12, 23221419), (13, 21435156), (18, 15480946), (26, 10717578), (36, 7740473), (39, 7145052), (43, 6480396), (52, 5358789), (61, 4568148), (78, 3572526), (86, 3240198), (117, 2381684), (122, 2284074), (129, 2160132), (156, 1786263), (172, 1620099), (183, 1522716), (227, 1227564), (234, 1190842), (244, 1142037), (258, 1080066), (366, 761358), (387, 720044), (454, 613782), (468, 595421), (516, 540033), (549, 507572), (559, 498492), (681, 409188), (732, 380679), (774, 360022), (793, 351396), (908, 306891), (1098, 253786), (1118, 249246), (1362, 204594), (1548, 180011), (1586, 175698), (1677, 166164), (2043, 136396), (2196, 126893), (2236, 124623), (2379, 117132), (2623, 106236), (2724, 102297), (2951, 94428), (3172, 87849), (3354, 83082), (4086, 68198), (4758, 58566), (5031, 55388), (5246, 53118), (5902, 47214), (6708, 41541), (7137, 39044), (7869, 35412), (8172, 34099), (8853, 31476), (9516, 29283), (9761, 28548), (10062, 27694), (10492, 26559), (11804, 23607), (13847, 20124), (14274, 19522), (15738, 17706)]