1987938840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{16451}}^1$

素因数の和:16537

約数の個数: 128

約数和(自身を含む): 6396537600

約数和(自身を除く): 4408598760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 53, 57, 60, 76, 95, 106, 114, 120, 152, 159, 190, 212, 228, 265, 285, 318, 380, 424, 456, 530, 570, 636, 760, 795, 1007, 1060, 1140, 1272, 1590, 2014, 2120, 2280, 3021, 3180, 4028, 5035, 6042, 6360, 8056, 10070, 12084, 15105, 16451, 20140, 24168, 30210, 32902, 40280, 49353, 60420, 65804, 82255, 98706, 120840, 131608, 164510, 197412, 246765, 312569, 329020, 394824, 493530, 625138, 658040, 871903, 937707, 987060, 1250276, 1562845, 1743806, 1875414, 1974120, 2500552, 2615709, 3125690, 3487612, 3750828, 4359515, 4688535, 5231418, 6251380, 6975224, 7501656, 8719030, 9377070, 10462836, 12502760, 13078545, 16566157, 17438060, 18754140, 20925672, 26157090, 33132314, 34876120, 37508280, 49698471, 52314180, 66264628, 82830785, 99396942, 104628360, 132529256, 165661570, 198793884, 248492355, 331323140, 397587768, 496984710, 662646280, 993969420, 1987938840]

約数ペア:

[(1, 1987938840), (2, 993969420), (3, 662646280), (4, 496984710), (5, 397587768), (6, 331323140), (8, 248492355), (10, 198793884), (12, 165661570), (15, 132529256), (19, 104628360), (20, 99396942), (24, 82830785), (30, 66264628), (38, 52314180), (40, 49698471), (53, 37508280), (57, 34876120), (60, 33132314), (76, 26157090), (95, 20925672), (106, 18754140), (114, 17438060), (120, 16566157), (152, 13078545), (159, 12502760), (190, 10462836), (212, 9377070), (228, 8719030), (265, 7501656), (285, 6975224), (318, 6251380), (380, 5231418), (424, 4688535), (456, 4359515), (530, 3750828), (570, 3487612), (636, 3125690), (760, 2615709), (795, 2500552), (1007, 1974120), (1060, 1875414), (1140, 1743806), (1272, 1562845), (1590, 1250276), (2014, 987060), (2120, 937707), (2280, 871903), (3021, 658040), (3180, 625138), (4028, 493530), (5035, 394824), (6042, 329020), (6360, 312569), (8056, 246765), (10070, 197412), (12084, 164510), (15105, 131608), (16451, 120840), (20140, 98706), (24168, 82255), (30210, 65804), (32902, 60420), (40280, 49353)]