72404560

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1$

素因数の和:512

約数の個数: 80

約数和(自身を含む): 176162832

約数和(自身を除く): 103758272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 61, 74, 80, 122, 148, 185, 244, 296, 305, 370, 401, 488, 592, 610, 740, 802, 976, 1220, 1480, 1604, 2005, 2257, 2440, 2960, 3208, 4010, 4514, 4880, 6416, 8020, 9028, 11285, 14837, 16040, 18056, 22570, 24461, 29674, 32080, 36112, 45140, 48922, 59348, 74185, 90280, 97844, 118696, 122305, 148370, 180560, 195688, 237392, 244610, 296740, 391376, 489220, 593480, 905057, 978440, 1186960, 1810114, 1956880, 3620228, 4525285, 7240456, 9050570, 14480912, 18101140, 36202280, 72404560]

約数ペア:

[(1, 72404560), (2, 36202280), (4, 18101140), (5, 14480912), (8, 9050570), (10, 7240456), (16, 4525285), (20, 3620228), (37, 1956880), (40, 1810114), (61, 1186960), (74, 978440), (80, 905057), (122, 593480), (148, 489220), (185, 391376), (244, 296740), (296, 244610), (305, 237392), (370, 195688), (401, 180560), (488, 148370), (592, 122305), (610, 118696), (740, 97844), (802, 90280), (976, 74185), (1220, 59348), (1480, 48922), (1604, 45140), (2005, 36112), (2257, 32080), (2440, 29674), (2960, 24461), (3208, 22570), (4010, 18056), (4514, 16040), (4880, 14837), (6416, 11285), (8020, 9028)]