1555129220

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:397

約数の個数: 96

約数和(自身を含む): 3411340800

約数和(自身を除く): 1856211580

約数列:

[1, 2, 4, 5, 10, 20, 73, 79, 97, 139, 146, 158, 194, 278, 292, 316, 365, 388, 395, 485, 556, 695, 730, 790, 970, 1390, 1460, 1580, 1940, 2780, 5767, 7081, 7663, 10147, 10981, 11534, 13483, 14162, 15326, 20294, 21962, 23068, 26966, 28324, 28835, 30652, 35405, 38315, 40588, 43924, 50735, 53932, 54905, 57670, 67415, 70810, 76630, 101470, 109810, 115340, 134830, 141620, 153260, 202940, 219620, 269660, 559399, 801613, 984259, 1065157, 1118798, 1603226, 1968518, 2130314, 2237596, 2796995, 3206452, 3937036, 4008065, 4260628, 4921295, 5325785, 5593990, 8016130, 9842590, 10651570, 11187980, 16032260, 19685180, 21303140, 77756461, 155512922, 311025844, 388782305, 777564610, 1555129220]

約数ペア:

[(1, 1555129220), (2, 777564610), (4, 388782305), (5, 311025844), (10, 155512922), (20, 77756461), (73, 21303140), (79, 19685180), (97, 16032260), (139, 11187980), (146, 10651570), (158, 9842590), (194, 8016130), (278, 5593990), (292, 5325785), (316, 4921295), (365, 4260628), (388, 4008065), (395, 3937036), (485, 3206452), (556, 2796995), (695, 2237596), (730, 2130314), (790, 1968518), (970, 1603226), (1390, 1118798), (1460, 1065157), (1580, 984259), (1940, 801613), (2780, 559399), (5767, 269660), (7081, 219620), (7663, 202940), (10147, 153260), (10981, 141620), (11534, 134830), (13483, 115340), (14162, 109810), (15326, 101470), (20294, 76630), (21962, 70810), (23068, 67415), (26966, 57670), (28324, 54905), (28835, 53932), (30652, 50735), (35405, 43924), (38315, 40588)]