1301689900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{421}}^1\times {\mathrm{631}}^1$

素因数の和:1080

約数の個数: 108

約数和(自身を含む): 3298861776

約数和(自身を除く): 1997171876

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 421, 490, 631, 700, 842, 980, 1225, 1262, 1684, 2105, 2450, 2524, 2947, 3155, 4210, 4417, 4900, 5894, 6310, 8420, 8834, 10525, 11788, 12620, 14735, 15775, 17668, 20629, 21050, 22085, 29470, 30919, 31550, 41258, 42100, 44170, 58940, 61838, 63100, 73675, 82516, 88340, 103145, 110425, 123676, 147350, 154595, 206290, 220850, 265651, 294700, 309190, 412580, 441700, 515725, 531302, 618380, 772975, 1031450, 1062604, 1328255, 1545950, 1859557, 2062900, 2656510, 3091900, 3719114, 5313020, 6641275, 7438228, 9297785, 13016899, 13282550, 18595570, 26033798, 26565100, 37191140, 46488925, 52067596, 65084495, 92977850, 130168990, 185955700, 260337980, 325422475, 650844950, 1301689900]

約数ペア:

[(1, 1301689900), (2, 650844950), (4, 325422475), (5, 260337980), (7, 185955700), (10, 130168990), (14, 92977850), (20, 65084495), (25, 52067596), (28, 46488925), (35, 37191140), (49, 26565100), (50, 26033798), (70, 18595570), (98, 13282550), (100, 13016899), (140, 9297785), (175, 7438228), (196, 6641275), (245, 5313020), (350, 3719114), (421, 3091900), (490, 2656510), (631, 2062900), (700, 1859557), (842, 1545950), (980, 1328255), (1225, 1062604), (1262, 1031450), (1684, 772975), (2105, 618380), (2450, 531302), (2524, 515725), (2947, 441700), (3155, 412580), (4210, 309190), (4417, 294700), (4900, 265651), (5894, 220850), (6310, 206290), (8420, 154595), (8834, 147350), (10525, 123676), (11788, 110425), (12620, 103145), (14735, 88340), (15775, 82516), (17668, 73675), (20629, 63100), (21050, 61838), (22085, 58940), (29470, 44170), (30919, 42100), (31550, 41258)]