421966720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{719}}^1$

素因数の和:876

約数の個数: 128

約数和(自身を含む): 1163289600

約数和(自身を除く): 741322880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 131, 140, 160, 224, 262, 280, 320, 448, 524, 560, 640, 655, 719, 896, 917, 1048, 1120, 1310, 1438, 1834, 2096, 2240, 2620, 2876, 3595, 3668, 4192, 4480, 4585, 5033, 5240, 5752, 7190, 7336, 8384, 9170, 10066, 10480, 11504, 14380, 14672, 16768, 18340, 20132, 20960, 23008, 25165, 28760, 29344, 36680, 40264, 41920, 46016, 50330, 57520, 58688, 73360, 80528, 83840, 92032, 94189, 100660, 115040, 117376, 146720, 161056, 188378, 201320, 230080, 293440, 322112, 376756, 402640, 460160, 470945, 586880, 644224, 659323, 753512, 805280, 941890, 1318646, 1507024, 1610560, 1883780, 2637292, 3014048, 3221120, 3296615, 3767560, 5274584, 6028096, 6593230, 7535120, 10549168, 12056192, 13186460, 15070240, 21098336, 26372920, 30140480, 42196672, 52745840, 60280960, 84393344, 105491680, 210983360, 421966720]

約数ペア:

[(1, 421966720), (2, 210983360), (4, 105491680), (5, 84393344), (7, 60280960), (8, 52745840), (10, 42196672), (14, 30140480), (16, 26372920), (20, 21098336), (28, 15070240), (32, 13186460), (35, 12056192), (40, 10549168), (56, 7535120), (64, 6593230), (70, 6028096), (80, 5274584), (112, 3767560), (128, 3296615), (131, 3221120), (140, 3014048), (160, 2637292), (224, 1883780), (262, 1610560), (280, 1507024), (320, 1318646), (448, 941890), (524, 805280), (560, 753512), (640, 659323), (655, 644224), (719, 586880), (896, 470945), (917, 460160), (1048, 402640), (1120, 376756), (1310, 322112), (1438, 293440), (1834, 230080), (2096, 201320), (2240, 188378), (2620, 161056), (2876, 146720), (3595, 117376), (3668, 115040), (4192, 100660), (4480, 94189), (4585, 92032), (5033, 83840), (5240, 80528), (5752, 73360), (7190, 58688), (7336, 57520), (8384, 50330), (9170, 46016), (10066, 41920), (10480, 40264), (11504, 36680), (14380, 29344), (14672, 28760), (16768, 25165), (18340, 23008), (20132, 20960)]