25185680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{397}}^1$

素因数の和:484

約数の個数: 80

約数和(自身を含む): 64256304

約数和(自身を除く): 39070624

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 61, 65, 80, 104, 122, 130, 208, 244, 260, 305, 397, 488, 520, 610, 793, 794, 976, 1040, 1220, 1586, 1588, 1985, 2440, 3172, 3176, 3965, 3970, 4880, 5161, 6344, 6352, 7930, 7940, 10322, 12688, 15860, 15880, 20644, 24217, 25805, 31720, 31760, 41288, 48434, 51610, 63440, 82576, 96868, 103220, 121085, 193736, 206440, 242170, 314821, 387472, 412880, 484340, 629642, 968680, 1259284, 1574105, 1937360, 2518568, 3148210, 5037136, 6296420, 12592840, 25185680]

約数ペア:

[(1, 25185680), (2, 12592840), (4, 6296420), (5, 5037136), (8, 3148210), (10, 2518568), (13, 1937360), (16, 1574105), (20, 1259284), (26, 968680), (40, 629642), (52, 484340), (61, 412880), (65, 387472), (80, 314821), (104, 242170), (122, 206440), (130, 193736), (208, 121085), (244, 103220), (260, 96868), (305, 82576), (397, 63440), (488, 51610), (520, 48434), (610, 41288), (793, 31760), (794, 31720), (976, 25805), (1040, 24217), (1220, 20644), (1586, 15880), (1588, 15860), (1985, 12688), (2440, 10322), (3172, 7940), (3176, 7930), (3965, 6352), (3970, 6344), (4880, 5161)]