261888890320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{929}}^1\times {\mathrm{1601}}^1$

素因数の和:2645

約数の個数: 160

約数和(自身を含む): 638470563840

約数和(自身を除く): 376581673520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 71, 80, 124, 142, 155, 248, 284, 310, 355, 496, 568, 620, 710, 929, 1136, 1240, 1420, 1601, 1858, 2201, 2480, 2840, 3202, 3716, 4402, 4645, 5680, 6404, 7432, 8005, 8804, 9290, 11005, 12808, 14864, 16010, 17608, 18580, 22010, 25616, 28799, 32020, 35216, 37160, 44020, 49631, 57598, 64040, 65959, 74320, 88040, 99262, 113671, 115196, 128080, 131918, 143995, 176080, 198524, 227342, 230392, 248155, 263836, 287990, 329795, 397048, 454684, 460784, 496310, 527672, 568355, 575980, 659590, 794096, 909368, 992620, 1055344, 1136710, 1151960, 1319180, 1487329, 1818736, 1985240, 2044729, 2273420, 2303920, 2638360, 2974658, 3523801, 3970480, 4089458, 4546840, 5276720, 5949316, 7047602, 7436645, 8178916, 9093680, 10223645, 11898632, 14095204, 14873290, 16357832, 17619005, 20447290, 23797264, 28190408, 29746580, 32715664, 35238010, 40894580, 46107199, 56380816, 59493160, 70476020, 81789160, 92214398, 105600359, 118986320, 140952040, 163578320, 184428796, 211200718, 230535995, 281904080, 368857592, 422401436, 461071990, 528001795, 737715184, 844802872, 922143980, 1056003590, 1689605744, 1844287960, 2112007180, 3273611129, 3688575920, 4224014360, 6547222258, 8448028720, 13094444516, 16368055645, 26188889032, 32736111290, 52377778064, 65472222580, 130944445160, 261888890320]

約数ペア:

[(1, 261888890320), (2, 130944445160), (4, 65472222580), (5, 52377778064), (8, 32736111290), (10, 26188889032), (16, 16368055645), (20, 13094444516), (31, 8448028720), (40, 6547222258), (62, 4224014360), (71, 3688575920), (80, 3273611129), (124, 2112007180), (142, 1844287960), (155, 1689605744), (248, 1056003590), (284, 922143980), (310, 844802872), (355, 737715184), (496, 528001795), (568, 461071990), (620, 422401436), (710, 368857592), (929, 281904080), (1136, 230535995), (1240, 211200718), (1420, 184428796), (1601, 163578320), (1858, 140952040), (2201, 118986320), (2480, 105600359), (2840, 92214398), (3202, 81789160), (3716, 70476020), (4402, 59493160), (4645, 56380816), (5680, 46107199), (6404, 40894580), (7432, 35238010), (8005, 32715664), (8804, 29746580), (9290, 28190408), (11005, 23797264), (12808, 20447290), (14864, 17619005), (16010, 16357832), (17608, 14873290), (18580, 14095204), (22010, 11898632), (25616, 10223645), (28799, 9093680), (32020, 8178916), (35216, 7436645), (37160, 7047602), (44020, 5949316), (49631, 5276720), (57598, 4546840), (64040, 4089458), (65959, 3970480), (74320, 3523801), (88040, 2974658), (99262, 2638360), (113671, 2303920), (115196, 2273420), (128080, 2044729), (131918, 1985240), (143995, 1818736), (176080, 1487329), (198524, 1319180), (227342, 1151960), (230392, 1136710), (248155, 1055344), (263836, 992620), (287990, 909368), (329795, 794096), (397048, 659590), (454684, 575980), (460784, 568355), (496310, 527672)]