401044920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{457}}^1$

素因数の和:645

約数の個数: 128

約数和(自身を含む): 1234621440

約数和(自身を除く): 833576520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 103, 120, 142, 206, 213, 284, 309, 355, 412, 426, 457, 515, 568, 618, 710, 824, 852, 914, 1030, 1065, 1236, 1371, 1420, 1545, 1704, 1828, 2060, 2130, 2285, 2472, 2742, 2840, 3090, 3656, 4120, 4260, 4570, 5484, 6180, 6855, 7313, 8520, 9140, 10968, 12360, 13710, 14626, 18280, 21939, 27420, 29252, 32447, 36565, 43878, 47071, 54840, 58504, 64894, 73130, 87756, 94142, 97341, 109695, 129788, 141213, 146260, 162235, 175512, 188284, 194682, 219390, 235355, 259576, 282426, 292520, 324470, 376568, 389364, 438780, 470710, 486705, 564852, 648940, 706065, 778728, 877560, 941420, 973410, 1129704, 1297880, 1412130, 1882840, 1946820, 2824260, 3342041, 3893640, 5648520, 6684082, 10026123, 13368164, 16710205, 20052246, 26736328, 33420410, 40104492, 50130615, 66840820, 80208984, 100261230, 133681640, 200522460, 401044920]

約数ペア:

[(1, 401044920), (2, 200522460), (3, 133681640), (4, 100261230), (5, 80208984), (6, 66840820), (8, 50130615), (10, 40104492), (12, 33420410), (15, 26736328), (20, 20052246), (24, 16710205), (30, 13368164), (40, 10026123), (60, 6684082), (71, 5648520), (103, 3893640), (120, 3342041), (142, 2824260), (206, 1946820), (213, 1882840), (284, 1412130), (309, 1297880), (355, 1129704), (412, 973410), (426, 941420), (457, 877560), (515, 778728), (568, 706065), (618, 648940), (710, 564852), (824, 486705), (852, 470710), (914, 438780), (1030, 389364), (1065, 376568), (1236, 324470), (1371, 292520), (1420, 282426), (1545, 259576), (1704, 235355), (1828, 219390), (2060, 194682), (2130, 188284), (2285, 175512), (2472, 162235), (2742, 146260), (2840, 141213), (3090, 129788), (3656, 109695), (4120, 97341), (4260, 94142), (4570, 87756), (5484, 73130), (6180, 64894), (6855, 58504), (7313, 54840), (8520, 47071), (9140, 43878), (10968, 36565), (12360, 32447), (13710, 29252), (14626, 27420), (18280, 21939)]