278889100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1667}}^1$

素因数の和:1927

約数の個数: 72

約数和(自身を含む): 694955520

約数和(自身を除く): 416066420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 239, 350, 478, 700, 956, 1195, 1667, 1673, 2390, 3334, 3346, 4780, 5975, 6668, 6692, 8335, 8365, 11669, 11950, 16670, 16730, 23338, 23900, 33340, 33460, 41675, 41825, 46676, 58345, 83350, 83650, 116690, 166700, 167300, 233380, 291725, 398413, 583450, 796826, 1166900, 1593652, 1992065, 2788891, 3984130, 5577782, 7968260, 9960325, 11155564, 13944455, 19920650, 27888910, 39841300, 55777820, 69722275, 139444550, 278889100]

約数ペア:

[(1, 278889100), (2, 139444550), (4, 69722275), (5, 55777820), (7, 39841300), (10, 27888910), (14, 19920650), (20, 13944455), (25, 11155564), (28, 9960325), (35, 7968260), (50, 5577782), (70, 3984130), (100, 2788891), (140, 1992065), (175, 1593652), (239, 1166900), (350, 796826), (478, 583450), (700, 398413), (956, 291725), (1195, 233380), (1667, 167300), (1673, 166700), (2390, 116690), (3334, 83650), (3346, 83350), (4780, 58345), (5975, 46676), (6668, 41825), (6692, 41675), (8335, 33460), (8365, 33340), (11669, 23900), (11950, 23338), (16670, 16730)]