2820005900120

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2447}}^1\times {\mathrm{472309}}^1$

素因数の和:474828

約数の個数: 64

約数和(自身を含む): 6451679030400

約数和(自身を除く): 3631673130280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 2447, 4894, 9788, 12235, 19576, 24470, 48940, 97880, 149267, 298534, 472309, 597068, 746335, 944618, 1194136, 1492670, 1889236, 2361545, 2985340, 3778472, 4723090, 5970680, 9446180, 18892360, 28810849, 57621698, 115243396, 144054245, 230486792, 288108490, 576216980, 1152433960, 1155740123, 2311480246, 4622960492, 5778700615, 9245920984, 11557401230, 23114802460, 46229604920, 70500147503, 141000295006, 282000590012, 352500737515, 564001180024, 705001475030, 1410002950060, 2820005900120]

約数ペア:

[(1, 2820005900120), (2, 1410002950060), (4, 705001475030), (5, 564001180024), (8, 352500737515), (10, 282000590012), (20, 141000295006), (40, 70500147503), (61, 46229604920), (122, 23114802460), (244, 11557401230), (305, 9245920984), (488, 5778700615), (610, 4622960492), (1220, 2311480246), (2440, 1155740123), (2447, 1152433960), (4894, 576216980), (9788, 288108490), (12235, 230486792), (19576, 144054245), (24470, 115243396), (48940, 57621698), (97880, 28810849), (149267, 18892360), (298534, 9446180), (472309, 5970680), (597068, 4723090), (746335, 3778472), (944618, 2985340), (1194136, 2361545), (1492670, 1889236)]