247788260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{19697}}^1$

素因数の和:19760

約数の個数: 48

約数和(自身を含む): 565884144

約数和(自身を除く): 318095884

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 68, 74, 85, 148, 170, 185, 340, 370, 629, 740, 1258, 2516, 3145, 6290, 12580, 19697, 39394, 78788, 98485, 196970, 334849, 393940, 669698, 728789, 1339396, 1457578, 1674245, 2915156, 3348490, 3643945, 6696980, 7287890, 12389413, 14575780, 24778826, 49557652, 61947065, 123894130, 247788260]

約数ペア:

[(1, 247788260), (2, 123894130), (4, 61947065), (5, 49557652), (10, 24778826), (17, 14575780), (20, 12389413), (34, 7287890), (37, 6696980), (68, 3643945), (74, 3348490), (85, 2915156), (148, 1674245), (170, 1457578), (185, 1339396), (340, 728789), (370, 669698), (629, 393940), (740, 334849), (1258, 196970), (2516, 98485), (3145, 78788), (6290, 39394), (12580, 19697)]