278310760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{487}}^1$

素因数の和:675

約数の個数: 128

約数和(自身を含む): 777208320

約数和(自身を除く): 498897560

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 157, 182, 260, 280, 314, 364, 455, 487, 520, 628, 728, 785, 910, 974, 1099, 1256, 1570, 1820, 1948, 2041, 2198, 2435, 3140, 3409, 3640, 3896, 4082, 4396, 4870, 5495, 6280, 6331, 6818, 8164, 8792, 9740, 10205, 10990, 12662, 13636, 14287, 16328, 17045, 19480, 20410, 21980, 25324, 27272, 28574, 31655, 34090, 40820, 43960, 44317, 50648, 57148, 63310, 68180, 71435, 76459, 81640, 88634, 114296, 126620, 136360, 142870, 152918, 177268, 221585, 253240, 285740, 305836, 354536, 382295, 443170, 535213, 571480, 611672, 764590, 886340, 993967, 1070426, 1529180, 1772680, 1987934, 2140852, 2676065, 3058360, 3975868, 4281704, 4969835, 5352130, 6957769, 7951736, 9939670, 10704260, 13915538, 19879340, 21408520, 27831076, 34788845, 39758680, 55662152, 69577690, 139155380, 278310760]

約数ペア:

[(1, 278310760), (2, 139155380), (4, 69577690), (5, 55662152), (7, 39758680), (8, 34788845), (10, 27831076), (13, 21408520), (14, 19879340), (20, 13915538), (26, 10704260), (28, 9939670), (35, 7951736), (40, 6957769), (52, 5352130), (56, 4969835), (65, 4281704), (70, 3975868), (91, 3058360), (104, 2676065), (130, 2140852), (140, 1987934), (157, 1772680), (182, 1529180), (260, 1070426), (280, 993967), (314, 886340), (364, 764590), (455, 611672), (487, 571480), (520, 535213), (628, 443170), (728, 382295), (785, 354536), (910, 305836), (974, 285740), (1099, 253240), (1256, 221585), (1570, 177268), (1820, 152918), (1948, 142870), (2041, 136360), (2198, 126620), (2435, 114296), (3140, 88634), (3409, 81640), (3640, 76459), (3896, 71435), (4082, 68180), (4396, 63310), (4870, 57148), (5495, 50648), (6280, 44317), (6331, 43960), (6818, 40820), (8164, 34090), (8792, 31655), (9740, 28574), (10205, 27272), (10990, 25324), (12662, 21980), (13636, 20410), (14287, 19480), (16328, 17045)]