20804782930

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1636883}}^1$

素因数の和:1636962

約数の個数: 32

約数和(自身を含む): 39599497728

約数和(自身を除く): 18794714798

約数列:

[1, 2, 5, 10, 31, 41, 62, 82, 155, 205, 310, 410, 1271, 2542, 6355, 12710, 1636883, 3273766, 8184415, 16368830, 50743373, 67112203, 101486746, 134224406, 253716865, 335561015, 507433730, 671122030, 2080478293, 4160956586, 10402391465, 20804782930]

約数ペア:

[(1, 20804782930), (2, 10402391465), (5, 4160956586), (10, 2080478293), (31, 671122030), (41, 507433730), (62, 335561015), (82, 253716865), (155, 134224406), (205, 101486746), (310, 67112203), (410, 50743373), (1271, 16368830), (2542, 8184415), (6355, 3273766), (12710, 1636883)]