20091196220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{8093}}^1$

素因数の和:8307

約数の個数: 96

約数和(自身を含む): 45689011200

約数和(自身を除く): 25597814980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 139, 188, 190, 235, 278, 380, 470, 556, 695, 893, 940, 1390, 1786, 2641, 2780, 3572, 4465, 5282, 6533, 8093, 8930, 10564, 13066, 13205, 16186, 17860, 26132, 26410, 32372, 32665, 40465, 52820, 65330, 80930, 124127, 130660, 153767, 161860, 248254, 307534, 380371, 496508, 615068, 620635, 760742, 768835, 1124927, 1241270, 1521484, 1537670, 1901855, 2249854, 2482540, 3075340, 3803710, 4499708, 5624635, 7227049, 7607420, 11249270, 14454098, 21373613, 22498540, 28908196, 36135245, 42747226, 52871569, 72270490, 85494452, 105743138, 106868065, 144540980, 211486276, 213736130, 264357845, 427472260, 528715690, 1004559811, 1057431380, 2009119622, 4018239244, 5022799055, 10045598110, 20091196220]

約数ペア:

[(1, 20091196220), (2, 10045598110), (4, 5022799055), (5, 4018239244), (10, 2009119622), (19, 1057431380), (20, 1004559811), (38, 528715690), (47, 427472260), (76, 264357845), (94, 213736130), (95, 211486276), (139, 144540980), (188, 106868065), (190, 105743138), (235, 85494452), (278, 72270490), (380, 52871569), (470, 42747226), (556, 36135245), (695, 28908196), (893, 22498540), (940, 21373613), (1390, 14454098), (1786, 11249270), (2641, 7607420), (2780, 7227049), (3572, 5624635), (4465, 4499708), (5282, 3803710), (6533, 3075340), (8093, 2482540), (8930, 2249854), (10564, 1901855), (13066, 1537670), (13205, 1521484), (16186, 1241270), (17860, 1124927), (26132, 768835), (26410, 760742), (32372, 620635), (32665, 615068), (40465, 496508), (52820, 380371), (65330, 307534), (80930, 248254), (124127, 161860), (130660, 153767)]