311944240

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{659}}^1$

素因数の和:830

約数の個数: 80

約数和(自身を含む): 745889760

約数和(自身を除く): 433945520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 97, 122, 194, 244, 305, 388, 485, 488, 610, 659, 776, 970, 976, 1220, 1318, 1552, 1940, 2440, 2636, 3295, 3880, 4880, 5272, 5917, 6590, 7760, 10544, 11834, 13180, 23668, 26360, 29585, 40199, 47336, 52720, 59170, 63923, 80398, 94672, 118340, 127846, 160796, 200995, 236680, 255692, 319615, 321592, 401990, 473360, 511384, 639230, 643184, 803980, 1022768, 1278460, 1607960, 2556920, 3215920, 3899303, 5113840, 7798606, 15597212, 19496515, 31194424, 38993030, 62388848, 77986060, 155972120, 311944240]

約数ペア:

[(1, 311944240), (2, 155972120), (4, 77986060), (5, 62388848), (8, 38993030), (10, 31194424), (16, 19496515), (20, 15597212), (40, 7798606), (61, 5113840), (80, 3899303), (97, 3215920), (122, 2556920), (194, 1607960), (244, 1278460), (305, 1022768), (388, 803980), (485, 643184), (488, 639230), (610, 511384), (659, 473360), (776, 401990), (970, 321592), (976, 319615), (1220, 255692), (1318, 236680), (1552, 200995), (1940, 160796), (2440, 127846), (2636, 118340), (3295, 94672), (3880, 80398), (4880, 63923), (5272, 59170), (5917, 52720), (6590, 47336), (7760, 40199), (10544, 29585), (11834, 26360), (13180, 23668)]