20408830995

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{383}}^1\times {\mathrm{10357}}^1$

素因数の和:10769

約数の個数: 64

約数和(自身を含む): 38183731200

約数和(自身を除く): 17774900205

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 383, 735, 1029, 1149, 1715, 1915, 2681, 5145, 5745, 8043, 10357, 13405, 18767, 31071, 40215, 51785, 56301, 72499, 93835, 131369, 155355, 217497, 281505, 362495, 394107, 507493, 656845, 1087485, 1522479, 1970535, 2537465, 3552451, 3966731, 7612395, 10657353, 11900193, 17762255, 19833655, 27767117, 53286765, 59500965, 83301351, 138835585, 194369819, 416506755, 583109457, 971849095, 1360588733, 2915547285, 4081766199, 6802943665, 20408830995]

約数ペア:

[(1, 20408830995), (3, 6802943665), (5, 4081766199), (7, 2915547285), (15, 1360588733), (21, 971849095), (35, 583109457), (49, 416506755), (105, 194369819), (147, 138835585), (245, 83301351), (343, 59500965), (383, 53286765), (735, 27767117), (1029, 19833655), (1149, 17762255), (1715, 11900193), (1915, 10657353), (2681, 7612395), (5145, 3966731), (5745, 3552451), (8043, 2537465), (10357, 1970535), (13405, 1522479), (18767, 1087485), (31071, 656845), (40215, 507493), (51785, 394107), (56301, 362495), (72499, 281505), (93835, 217497), (131369, 155355)]