51680000380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{457}}^1\times {\mathrm{3767}}^1$

素因数の和:4331

約数の個数: 96

約数和(自身を含む): 115969996800

約数和(自身を除く): 64289996420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 457, 790, 914, 1501, 1580, 1828, 2285, 3002, 3767, 4570, 6004, 7505, 7534, 8683, 9140, 15010, 15068, 17366, 18835, 30020, 34732, 36103, 37670, 43415, 71573, 72206, 75340, 86830, 143146, 144412, 173660, 180515, 286292, 297593, 357865, 361030, 595186, 685957, 715730, 722060, 1190372, 1371914, 1431460, 1487965, 1721519, 2743828, 2975930, 3429785, 3443038, 5654267, 5951860, 6859570, 6886076, 8607595, 11308534, 13719140, 17215190, 22617068, 28271335, 32708861, 34430380, 56542670, 65417722, 113085340, 130835444, 136000001, 163544305, 272000002, 327088610, 544000004, 654177220, 680000005, 1360000010, 2584000019, 2720000020, 5168000038, 10336000076, 12920000095, 25840000190, 51680000380]

約数ペア:

[(1, 51680000380), (2, 25840000190), (4, 12920000095), (5, 10336000076), (10, 5168000038), (19, 2720000020), (20, 2584000019), (38, 1360000010), (76, 680000005), (79, 654177220), (95, 544000004), (158, 327088610), (190, 272000002), (316, 163544305), (380, 136000001), (395, 130835444), (457, 113085340), (790, 65417722), (914, 56542670), (1501, 34430380), (1580, 32708861), (1828, 28271335), (2285, 22617068), (3002, 17215190), (3767, 13719140), (4570, 11308534), (6004, 8607595), (7505, 6886076), (7534, 6859570), (8683, 5951860), (9140, 5654267), (15010, 3443038), (15068, 3429785), (17366, 2975930), (18835, 2743828), (30020, 1721519), (34732, 1487965), (36103, 1431460), (37670, 1371914), (43415, 1190372), (71573, 722060), (72206, 715730), (75340, 685957), (86830, 595186), (143146, 361030), (144412, 357865), (173660, 297593), (180515, 286292)]