12804900420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{40939}}^1$

素因数の和:41365

約数の個数: 96

約数和(自身を含む): 38708933760

約数和(自身を除く): 25904033340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 401, 780, 802, 1203, 1604, 2005, 2406, 4010, 4812, 5213, 6015, 8020, 10426, 12030, 15639, 20852, 24060, 26065, 31278, 40939, 52130, 62556, 78195, 81878, 104260, 122817, 156390, 163756, 204695, 245634, 312780, 409390, 491268, 532207, 614085, 818780, 1064414, 1228170, 1596621, 2128828, 2456340, 2661035, 3193242, 5322070, 6386484, 7983105, 10644140, 15966210, 16416539, 31932420, 32833078, 49249617, 65666156, 82082695, 98499234, 164165390, 196998468, 213415007, 246248085, 328330780, 426830014, 492496170, 640245021, 853660028, 984992340, 1067075035, 1280490042, 2134150070, 2560980084, 3201225105, 4268300140, 6402450210, 12804900420]

約数ペア:

[(1, 12804900420), (2, 6402450210), (3, 4268300140), (4, 3201225105), (5, 2560980084), (6, 2134150070), (10, 1280490042), (12, 1067075035), (13, 984992340), (15, 853660028), (20, 640245021), (26, 492496170), (30, 426830014), (39, 328330780), (52, 246248085), (60, 213415007), (65, 196998468), (78, 164165390), (130, 98499234), (156, 82082695), (195, 65666156), (260, 49249617), (390, 32833078), (401, 31932420), (780, 16416539), (802, 15966210), (1203, 10644140), (1604, 7983105), (2005, 6386484), (2406, 5322070), (4010, 3193242), (4812, 2661035), (5213, 2456340), (6015, 2128828), (8020, 1596621), (10426, 1228170), (12030, 1064414), (15639, 818780), (20852, 614085), (24060, 532207), (26065, 491268), (31278, 409390), (40939, 312780), (52130, 245634), (62556, 204695), (78195, 163756), (81878, 156390), (104260, 122817)]