1651402240

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20809}}^1$

素因数の和:20863

約数の個数: 80

約数和(自身を含む): 4087416960

約数和(自身を除く): 2436014720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 3968, 4960, 7936, 9920, 15872, 19840, 20809, 39680, 41618, 79360, 83236, 104045, 166472, 208090, 332944, 416180, 645079, 665888, 832360, 1290158, 1331776, 1664720, 2580316, 2663552, 3225395, 3329440, 5160632, 5327104, 6450790, 6658880, 10321264, 10654208, 12901580, 13317760, 20642528, 25803160, 26635520, 41285056, 51606320, 53271040, 82570112, 103212640, 165140224, 206425280, 330280448, 412850560, 825701120, 1651402240]

約数ペア:

[(1, 1651402240), (2, 825701120), (4, 412850560), (5, 330280448), (8, 206425280), (10, 165140224), (16, 103212640), (20, 82570112), (31, 53271040), (32, 51606320), (40, 41285056), (62, 26635520), (64, 25803160), (80, 20642528), (124, 13317760), (128, 12901580), (155, 10654208), (160, 10321264), (248, 6658880), (256, 6450790), (310, 5327104), (320, 5160632), (496, 3329440), (512, 3225395), (620, 2663552), (640, 2580316), (992, 1664720), (1240, 1331776), (1280, 1290158), (1984, 832360), (2480, 665888), (2560, 645079), (3968, 416180), (4960, 332944), (7936, 208090), (9920, 166472), (15872, 104045), (19840, 83236), (20809, 79360), (39680, 41618)]