1638705120

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{20201}}^1$

素因数の和:20245

約数の個数: 144

約数和(自身を含む): 5589812592

約数和(自身を除く): 3951107472

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 169, 195, 208, 240, 260, 312, 338, 390, 416, 480, 507, 520, 624, 676, 780, 845, 1014, 1040, 1248, 1352, 1560, 1690, 2028, 2080, 2535, 2704, 3120, 3380, 4056, 5070, 5408, 6240, 6760, 8112, 10140, 13520, 16224, 20201, 20280, 27040, 40402, 40560, 60603, 80804, 81120, 101005, 121206, 161608, 202010, 242412, 262613, 303015, 323216, 404020, 484824, 525226, 606030, 646432, 787839, 808040, 969648, 1050452, 1212060, 1313065, 1575678, 1616080, 1939296, 2100904, 2424120, 2626130, 3151356, 3232160, 3413969, 3939195, 4201808, 4848240, 5252260, 6302712, 6827938, 7878390, 8403616, 9696480, 10241907, 10504520, 12605424, 13655876, 15756780, 17069845, 20483814, 21009040, 25210848, 27311752, 31513560, 34139690, 40967628, 42018080, 51209535, 54623504, 63027120, 68279380, 81935256, 102419070, 109247008, 126054240, 136558760, 163870512, 204838140, 273117520, 327741024, 409676280, 546235040, 819352560, 1638705120]

約数ペア:

[(1, 1638705120), (2, 819352560), (3, 546235040), (4, 409676280), (5, 327741024), (6, 273117520), (8, 204838140), (10, 163870512), (12, 136558760), (13, 126054240), (15, 109247008), (16, 102419070), (20, 81935256), (24, 68279380), (26, 63027120), (30, 54623504), (32, 51209535), (39, 42018080), (40, 40967628), (48, 34139690), (52, 31513560), (60, 27311752), (65, 25210848), (78, 21009040), (80, 20483814), (96, 17069845), (104, 15756780), (120, 13655876), (130, 12605424), (156, 10504520), (160, 10241907), (169, 9696480), (195, 8403616), (208, 7878390), (240, 6827938), (260, 6302712), (312, 5252260), (338, 4848240), (390, 4201808), (416, 3939195), (480, 3413969), (507, 3232160), (520, 3151356), (624, 2626130), (676, 2424120), (780, 2100904), (845, 1939296), (1014, 1616080), (1040, 1575678), (1248, 1313065), (1352, 1212060), (1560, 1050452), (1690, 969648), (2028, 808040), (2080, 787839), (2535, 646432), (2704, 606030), (3120, 525226), (3380, 484824), (4056, 404020), (5070, 323216), (5408, 303015), (6240, 262613), (6760, 242412), (8112, 202010), (10140, 161608), (13520, 121206), (16224, 101005), (20201, 81120), (20280, 80804), (27040, 60603), (40402, 40560)]