211478280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4373}}^1$

素因数の和:4431

約数の個数: 128

約数和(自身を含む): 705438720

約数和(自身を除く): 493960440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 78, 93, 104, 120, 124, 130, 155, 156, 186, 195, 248, 260, 310, 312, 372, 390, 403, 465, 520, 620, 744, 780, 806, 930, 1209, 1240, 1560, 1612, 1860, 2015, 2418, 3224, 3720, 4030, 4373, 4836, 6045, 8060, 8746, 9672, 12090, 13119, 16120, 17492, 21865, 24180, 26238, 34984, 43730, 48360, 52476, 56849, 65595, 87460, 104952, 113698, 131190, 135563, 170547, 174920, 227396, 262380, 271126, 284245, 341094, 406689, 454792, 524760, 542252, 568490, 677815, 682188, 813378, 852735, 1084504, 1136980, 1355630, 1364376, 1626756, 1705470, 1762319, 2033445, 2273960, 2711260, 3253512, 3410940, 3524638, 4066890, 5286957, 5422520, 6821880, 7049276, 8133780, 8811595, 10573914, 14098552, 16267560, 17623190, 21147828, 26434785, 35246380, 42295656, 52869570, 70492760, 105739140, 211478280]

約数ペア:

[(1, 211478280), (2, 105739140), (3, 70492760), (4, 52869570), (5, 42295656), (6, 35246380), (8, 26434785), (10, 21147828), (12, 17623190), (13, 16267560), (15, 14098552), (20, 10573914), (24, 8811595), (26, 8133780), (30, 7049276), (31, 6821880), (39, 5422520), (40, 5286957), (52, 4066890), (60, 3524638), (62, 3410940), (65, 3253512), (78, 2711260), (93, 2273960), (104, 2033445), (120, 1762319), (124, 1705470), (130, 1626756), (155, 1364376), (156, 1355630), (186, 1136980), (195, 1084504), (248, 852735), (260, 813378), (310, 682188), (312, 677815), (372, 568490), (390, 542252), (403, 524760), (465, 454792), (520, 406689), (620, 341094), (744, 284245), (780, 271126), (806, 262380), (930, 227396), (1209, 174920), (1240, 170547), (1560, 135563), (1612, 131190), (1860, 113698), (2015, 104952), (2418, 87460), (3224, 65595), (3720, 56849), (4030, 52476), (4373, 48360), (4836, 43730), (6045, 34984), (8060, 26238), (8746, 24180), (9672, 21865), (12090, 17492), (13119, 16120)]