25639520

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:184

約数の個数: 96

約数和(自身を含む): 64120896

約数和(自身を除く): 38481376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 61, 71, 74, 80, 122, 142, 148, 160, 185, 244, 284, 296, 305, 355, 370, 488, 568, 592, 610, 710, 740, 976, 1136, 1184, 1220, 1420, 1480, 1952, 2257, 2272, 2440, 2627, 2840, 2960, 4331, 4514, 4880, 5254, 5680, 5920, 8662, 9028, 9760, 10508, 11285, 11360, 13135, 17324, 18056, 21016, 21655, 22570, 26270, 34648, 36112, 42032, 43310, 45140, 52540, 69296, 72224, 84064, 86620, 90280, 105080, 138592, 160247, 173240, 180560, 210160, 320494, 346480, 361120, 420320, 640988, 692960, 801235, 1281976, 1602470, 2563952, 3204940, 5127904, 6409880, 12819760, 25639520]

約数ペア:

[(1, 25639520), (2, 12819760), (4, 6409880), (5, 5127904), (8, 3204940), (10, 2563952), (16, 1602470), (20, 1281976), (32, 801235), (37, 692960), (40, 640988), (61, 420320), (71, 361120), (74, 346480), (80, 320494), (122, 210160), (142, 180560), (148, 173240), (160, 160247), (185, 138592), (244, 105080), (284, 90280), (296, 86620), (305, 84064), (355, 72224), (370, 69296), (488, 52540), (568, 45140), (592, 43310), (610, 42032), (710, 36112), (740, 34648), (976, 26270), (1136, 22570), (1184, 21655), (1220, 21016), (1420, 18056), (1480, 17324), (1952, 13135), (2257, 11360), (2272, 11285), (2440, 10508), (2627, 9760), (2840, 9028), (2960, 8662), (4331, 5920), (4514, 5680), (4880, 5254)]