1818820640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{124919}}^1$

素因数の和:124954

約数の個数: 96

約数和(自身を含む): 5288613120

約数和(自身を除く): 3469792480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 364, 416, 455, 520, 560, 728, 910, 1040, 1120, 1456, 1820, 2080, 2912, 3640, 7280, 14560, 124919, 249838, 499676, 624595, 874433, 999352, 1249190, 1623947, 1748866, 1998704, 2498380, 3247894, 3497732, 3997408, 4372165, 4996760, 6495788, 6995464, 8119735, 8744330, 9993520, 11367629, 12991576, 13990928, 16239470, 17488660, 19987040, 22735258, 25983152, 27981856, 32478940, 34977320, 45470516, 51966304, 56838145, 64957880, 69954640, 90941032, 113676290, 129915760, 139909280, 181882064, 227352580, 259831520, 363764128, 454705160, 909410320, 1818820640]

約数ペア:

[(1, 1818820640), (2, 909410320), (4, 454705160), (5, 363764128), (7, 259831520), (8, 227352580), (10, 181882064), (13, 139909280), (14, 129915760), (16, 113676290), (20, 90941032), (26, 69954640), (28, 64957880), (32, 56838145), (35, 51966304), (40, 45470516), (52, 34977320), (56, 32478940), (65, 27981856), (70, 25983152), (80, 22735258), (91, 19987040), (104, 17488660), (112, 16239470), (130, 13990928), (140, 12991576), (160, 11367629), (182, 9993520), (208, 8744330), (224, 8119735), (260, 6995464), (280, 6495788), (364, 4996760), (416, 4372165), (455, 3997408), (520, 3497732), (560, 3247894), (728, 2498380), (910, 1998704), (1040, 1748866), (1120, 1623947), (1456, 1249190), (1820, 999352), (2080, 874433), (2912, 624595), (3640, 499676), (7280, 249838), (14560, 124919)]