278722780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{14969}}^1$

素因数の和:15011

約数の個数: 72

約数和(自身を含む): 716763600

約数和(自身を除く): 438040820

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1862, 2660, 3724, 4655, 9310, 14969, 18620, 29938, 59876, 74845, 104783, 149690, 209566, 284411, 299380, 419132, 523915, 568822, 733481, 1047830, 1137644, 1422055, 1466962, 1990877, 2095660, 2844110, 2933924, 3667405, 3981754, 5688220, 7334810, 7963508, 9954385, 13936139, 14669620, 19908770, 27872278, 39817540, 55744556, 69680695, 139361390, 278722780]

約数ペア:

[(1, 278722780), (2, 139361390), (4, 69680695), (5, 55744556), (7, 39817540), (10, 27872278), (14, 19908770), (19, 14669620), (20, 13936139), (28, 9954385), (35, 7963508), (38, 7334810), (49, 5688220), (70, 3981754), (76, 3667405), (95, 2933924), (98, 2844110), (133, 2095660), (140, 1990877), (190, 1466962), (196, 1422055), (245, 1137644), (266, 1047830), (380, 733481), (490, 568822), (532, 523915), (665, 419132), (931, 299380), (980, 284411), (1330, 209566), (1862, 149690), (2660, 104783), (3724, 74845), (4655, 59876), (9310, 29938), (14969, 18620)]