81222988

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{373}}^1$

素因数の和:503

約数の個数: 72

約数和(自身を含む): 182652624

約数和(自身を除く): 101429636

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 101, 154, 196, 202, 308, 373, 404, 539, 707, 746, 1078, 1111, 1414, 1492, 2156, 2222, 2611, 2828, 4103, 4444, 4949, 5222, 7777, 8206, 9898, 10444, 15554, 16412, 18277, 19796, 28721, 31108, 36554, 37673, 54439, 57442, 73108, 75346, 108878, 114884, 150692, 201047, 217756, 263711, 402094, 414403, 527422, 804188, 828806, 1054844, 1657612, 1845977, 2900821, 3691954, 5801642, 7383908, 11603284, 20305747, 40611494, 81222988]

約数ペア:

[(1, 81222988), (2, 40611494), (4, 20305747), (7, 11603284), (11, 7383908), (14, 5801642), (22, 3691954), (28, 2900821), (44, 1845977), (49, 1657612), (77, 1054844), (98, 828806), (101, 804188), (154, 527422), (196, 414403), (202, 402094), (308, 263711), (373, 217756), (404, 201047), (539, 150692), (707, 114884), (746, 108878), (1078, 75346), (1111, 73108), (1414, 57442), (1492, 54439), (2156, 37673), (2222, 36554), (2611, 31108), (2828, 28721), (4103, 19796), (4444, 18277), (4949, 16412), (5222, 15554), (7777, 10444), (8206, 9898)]