278255120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{1871}}^1$

素因数の和:1921

約数の個数: 120

約数和(自身を含む): 764629632

約数和(自身を除く): 486374512

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 169, 176, 208, 220, 260, 286, 338, 440, 520, 572, 676, 715, 845, 880, 1040, 1144, 1352, 1430, 1690, 1859, 1871, 2288, 2704, 2860, 3380, 3718, 3742, 5720, 6760, 7436, 7484, 9295, 9355, 11440, 13520, 14872, 14968, 18590, 18710, 20581, 24323, 29744, 29936, 37180, 37420, 41162, 48646, 74360, 74840, 82324, 97292, 102905, 121615, 148720, 149680, 164648, 194584, 205810, 243230, 267553, 316199, 329296, 389168, 411620, 486460, 535106, 632398, 823240, 972920, 1070212, 1264796, 1337765, 1580995, 1646480, 1945840, 2140424, 2529592, 2675530, 3161990, 3478189, 4280848, 5059184, 5351060, 6323980, 6956378, 10702120, 12647960, 13912756, 17390945, 21404240, 25295920, 27825512, 34781890, 55651024, 69563780, 139127560, 278255120]

約数ペア:

[(1, 278255120), (2, 139127560), (4, 69563780), (5, 55651024), (8, 34781890), (10, 27825512), (11, 25295920), (13, 21404240), (16, 17390945), (20, 13912756), (22, 12647960), (26, 10702120), (40, 6956378), (44, 6323980), (52, 5351060), (55, 5059184), (65, 4280848), (80, 3478189), (88, 3161990), (104, 2675530), (110, 2529592), (130, 2140424), (143, 1945840), (169, 1646480), (176, 1580995), (208, 1337765), (220, 1264796), (260, 1070212), (286, 972920), (338, 823240), (440, 632398), (520, 535106), (572, 486460), (676, 411620), (715, 389168), (845, 329296), (880, 316199), (1040, 267553), (1144, 243230), (1352, 205810), (1430, 194584), (1690, 164648), (1859, 149680), (1871, 148720), (2288, 121615), (2704, 102905), (2860, 97292), (3380, 82324), (3718, 74840), (3742, 74360), (5720, 48646), (6760, 41162), (7436, 37420), (7484, 37180), (9295, 29936), (9355, 29744), (11440, 24323), (13520, 20581), (14872, 18710), (14968, 18590)]