440342840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1171}}^1$

素因数の和:1285

約数の個数: 128

約数和(自身を含む): 1215129600

約数和(自身を除く): 774786760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 79, 85, 119, 136, 140, 158, 170, 238, 280, 316, 340, 395, 476, 553, 595, 632, 680, 790, 952, 1106, 1171, 1190, 1343, 1580, 2212, 2342, 2380, 2686, 2765, 3160, 4424, 4684, 4760, 5372, 5530, 5855, 6715, 8197, 9368, 9401, 10744, 11060, 11710, 13430, 16394, 18802, 19907, 22120, 23420, 26860, 32788, 37604, 39814, 40985, 46840, 47005, 53720, 65576, 75208, 79628, 81970, 92509, 94010, 99535, 139349, 159256, 163940, 185018, 188020, 199070, 278698, 327880, 370036, 376040, 398140, 462545, 557396, 647563, 696745, 740072, 796280, 925090, 1114792, 1295126, 1393490, 1572653, 1850180, 2590252, 2786980, 3145306, 3237815, 3700360, 5180504, 5573960, 6290612, 6475630, 7863265, 11008571, 12581224, 12951260, 15726530, 22017142, 25902520, 31453060, 44034284, 55042855, 62906120, 88068568, 110085710, 220171420, 440342840]

約数ペア:

[(1, 440342840), (2, 220171420), (4, 110085710), (5, 88068568), (7, 62906120), (8, 55042855), (10, 44034284), (14, 31453060), (17, 25902520), (20, 22017142), (28, 15726530), (34, 12951260), (35, 12581224), (40, 11008571), (56, 7863265), (68, 6475630), (70, 6290612), (79, 5573960), (85, 5180504), (119, 3700360), (136, 3237815), (140, 3145306), (158, 2786980), (170, 2590252), (238, 1850180), (280, 1572653), (316, 1393490), (340, 1295126), (395, 1114792), (476, 925090), (553, 796280), (595, 740072), (632, 696745), (680, 647563), (790, 557396), (952, 462545), (1106, 398140), (1171, 376040), (1190, 370036), (1343, 327880), (1580, 278698), (2212, 199070), (2342, 188020), (2380, 185018), (2686, 163940), (2765, 159256), (3160, 139349), (4424, 99535), (4684, 94010), (4760, 92509), (5372, 81970), (5530, 79628), (5855, 75208), (6715, 65576), (8197, 53720), (9368, 47005), (9401, 46840), (10744, 40985), (11060, 39814), (11710, 37604), (13430, 32788), (16394, 26860), (18802, 23420), (19907, 22120)]