28704760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3307}}^1$

素因数の和:3356

約数の個数: 64

約数和(自身を含む): 76216320

約数和(自身を除く): 47511560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 3307, 4340, 6614, 8680, 13228, 16535, 23149, 26456, 33070, 46298, 66140, 92596, 102517, 115745, 132280, 185192, 205034, 231490, 410068, 462980, 512585, 717619, 820136, 925960, 1025170, 1435238, 2050340, 2870476, 3588095, 4100680, 5740952, 7176190, 14352380, 28704760]

約数ペア:

[(1, 28704760), (2, 14352380), (4, 7176190), (5, 5740952), (7, 4100680), (8, 3588095), (10, 2870476), (14, 2050340), (20, 1435238), (28, 1025170), (31, 925960), (35, 820136), (40, 717619), (56, 512585), (62, 462980), (70, 410068), (124, 231490), (140, 205034), (155, 185192), (217, 132280), (248, 115745), (280, 102517), (310, 92596), (434, 66140), (620, 46298), (868, 33070), (1085, 26456), (1240, 23149), (1736, 16535), (2170, 13228), (3307, 8680), (4340, 6614)]