21715690700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1\times {\mathrm{751}}^1$

素因数の和:1144

約数の個数: 144

約数和(自身を含む): 52197992448

約数和(自身を除く): 30482301748

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 97, 100, 110, 194, 220, 271, 275, 388, 485, 542, 550, 751, 970, 1067, 1084, 1100, 1355, 1502, 1940, 2134, 2425, 2710, 2981, 3004, 3755, 4268, 4850, 5335, 5420, 5962, 6775, 7510, 8261, 9700, 10670, 11924, 13550, 14905, 15020, 16522, 18775, 21340, 26287, 26675, 27100, 29810, 33044, 37550, 41305, 52574, 53350, 59620, 72847, 74525, 75100, 82610, 105148, 106700, 131435, 145694, 149050, 165220, 203521, 206525, 262870, 289157, 291388, 298100, 364235, 407042, 413050, 525740, 578314, 657175, 728470, 801317, 814084, 826100, 1017605, 1156628, 1314350, 1445785, 1456940, 1602634, 1821175, 2035210, 2238731, 2628700, 2891570, 3205268, 3642350, 4006585, 4070420, 4477462, 5088025, 5783140, 7228925, 7284700, 8013170, 8954924, 10176050, 11193655, 14457850, 16026340, 19741537, 20032925, 20352100, 22387310, 28915700, 39483074, 40065850, 44774620, 55968275, 78966148, 80131700, 98707685, 111936550, 197415370, 217156907, 223873100, 394830740, 434313814, 493538425, 868627628, 987076850, 1085784535, 1974153700, 2171569070, 4343138140, 5428922675, 10857845350, 21715690700]

約数ペア:

[(1, 21715690700), (2, 10857845350), (4, 5428922675), (5, 4343138140), (10, 2171569070), (11, 1974153700), (20, 1085784535), (22, 987076850), (25, 868627628), (44, 493538425), (50, 434313814), (55, 394830740), (97, 223873100), (100, 217156907), (110, 197415370), (194, 111936550), (220, 98707685), (271, 80131700), (275, 78966148), (388, 55968275), (485, 44774620), (542, 40065850), (550, 39483074), (751, 28915700), (970, 22387310), (1067, 20352100), (1084, 20032925), (1100, 19741537), (1355, 16026340), (1502, 14457850), (1940, 11193655), (2134, 10176050), (2425, 8954924), (2710, 8013170), (2981, 7284700), (3004, 7228925), (3755, 5783140), (4268, 5088025), (4850, 4477462), (5335, 4070420), (5420, 4006585), (5962, 3642350), (6775, 3205268), (7510, 2891570), (8261, 2628700), (9700, 2238731), (10670, 2035210), (11924, 1821175), (13550, 1602634), (14905, 1456940), (15020, 1445785), (16522, 1314350), (18775, 1156628), (21340, 1017605), (26287, 826100), (26675, 814084), (27100, 801317), (29810, 728470), (33044, 657175), (37550, 578314), (41305, 525740), (52574, 413050), (53350, 407042), (59620, 364235), (72847, 298100), (74525, 291388), (75100, 289157), (82610, 262870), (105148, 206525), (106700, 203521), (131435, 165220), (145694, 149050)]