89811220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1\times {\mathrm{257}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 192317328

約数和(自身を除く): 102506108

約数列:

[1, 2, 4, 5, 10, 20, 101, 173, 202, 257, 346, 404, 505, 514, 692, 865, 1010, 1028, 1285, 1730, 2020, 2570, 3460, 5140, 17473, 25957, 34946, 44461, 51914, 69892, 87365, 88922, 103828, 129785, 174730, 177844, 222305, 259570, 349460, 444610, 519140, 889220, 4490561, 8981122, 17962244, 22452805, 44905610, 89811220]

約数ペア:

[(1, 89811220), (2, 44905610), (4, 22452805), (5, 17962244), (10, 8981122), (20, 4490561), (101, 889220), (173, 519140), (202, 444610), (257, 349460), (346, 259570), (404, 222305), (505, 177844), (514, 174730), (692, 129785), (865, 103828), (1010, 88922), (1028, 87365), (1285, 69892), (1730, 51914), (2020, 44461), (2570, 34946), (3460, 25957), (5140, 17473)]