278509560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{1423}}^1$

素因数の和:1677

約数の個数: 128

約数和(自身を含む): 959662080

約数和(自身を除く): 681152520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 233, 280, 420, 466, 699, 840, 932, 1165, 1398, 1423, 1631, 1864, 2330, 2796, 2846, 3262, 3495, 4269, 4660, 4893, 5592, 5692, 6524, 6990, 7115, 8155, 8538, 9320, 9786, 9961, 11384, 13048, 13980, 14230, 16310, 17076, 19572, 19922, 21345, 24465, 27960, 28460, 29883, 32620, 34152, 39144, 39844, 42690, 48930, 49805, 56920, 59766, 65240, 79688, 85380, 97860, 99610, 119532, 149415, 170760, 195720, 199220, 239064, 298830, 331559, 398440, 597660, 663118, 994677, 1195320, 1326236, 1657795, 1989354, 2320913, 2652472, 3315590, 3978708, 4641826, 4973385, 6631180, 6962739, 7957416, 9283652, 9946770, 11604565, 13262360, 13925478, 18567304, 19893540, 23209130, 27850956, 34813695, 39787080, 46418260, 55701912, 69627390, 92836520, 139254780, 278509560]

約数ペア:

[(1, 278509560), (2, 139254780), (3, 92836520), (4, 69627390), (5, 55701912), (6, 46418260), (7, 39787080), (8, 34813695), (10, 27850956), (12, 23209130), (14, 19893540), (15, 18567304), (20, 13925478), (21, 13262360), (24, 11604565), (28, 9946770), (30, 9283652), (35, 7957416), (40, 6962739), (42, 6631180), (56, 4973385), (60, 4641826), (70, 3978708), (84, 3315590), (105, 2652472), (120, 2320913), (140, 1989354), (168, 1657795), (210, 1326236), (233, 1195320), (280, 994677), (420, 663118), (466, 597660), (699, 398440), (840, 331559), (932, 298830), (1165, 239064), (1398, 199220), (1423, 195720), (1631, 170760), (1864, 149415), (2330, 119532), (2796, 99610), (2846, 97860), (3262, 85380), (3495, 79688), (4269, 65240), (4660, 59766), (4893, 56920), (5592, 49805), (5692, 48930), (6524, 42690), (6990, 39844), (7115, 39144), (8155, 34152), (8538, 32620), (9320, 29883), (9786, 28460), (9961, 27960), (11384, 24465), (13048, 21345), (13980, 19922), (14230, 19572), (16310, 17076)]