21816147700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{2141}}^1$

素因数の和:2378

約数の個数: 144

約数和(自身を含む): 51761687040

約数和(自身を除く): 29945539340

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 31, 38, 50, 62, 76, 95, 100, 124, 155, 173, 190, 310, 346, 380, 475, 589, 620, 692, 775, 865, 950, 1178, 1550, 1730, 1900, 2141, 2356, 2945, 3100, 3287, 3460, 4282, 4325, 5363, 5890, 6574, 8564, 8650, 10705, 10726, 11780, 13148, 14725, 16435, 17300, 21410, 21452, 26815, 29450, 32870, 40679, 42820, 53525, 53630, 58900, 65740, 66371, 81358, 82175, 101897, 107050, 107260, 132742, 134075, 162716, 164350, 203395, 203794, 214100, 265484, 268150, 328700, 331855, 370393, 406790, 407588, 509485, 536300, 663710, 740786, 813580, 1016975, 1018970, 1261049, 1327420, 1481572, 1659275, 1851965, 2033950, 2037940, 2522098, 2547425, 3318550, 3703930, 4067900, 5044196, 5094850, 6305245, 6637100, 7037467, 7407860, 9259825, 10189700, 11482183, 12610490, 14074934, 18519650, 22964366, 25220980, 28149868, 31526225, 35187335, 37039300, 45928732, 57410915, 63052450, 70374670, 114821830, 126104900, 140749340, 175936675, 218161477, 229643660, 287054575, 351873350, 436322954, 574109150, 703746700, 872645908, 1090807385, 1148218300, 2181614770, 4363229540, 5454036925, 10908073850, 21816147700]

約数ペア:

[(1, 21816147700), (2, 10908073850), (4, 5454036925), (5, 4363229540), (10, 2181614770), (19, 1148218300), (20, 1090807385), (25, 872645908), (31, 703746700), (38, 574109150), (50, 436322954), (62, 351873350), (76, 287054575), (95, 229643660), (100, 218161477), (124, 175936675), (155, 140749340), (173, 126104900), (190, 114821830), (310, 70374670), (346, 63052450), (380, 57410915), (475, 45928732), (589, 37039300), (620, 35187335), (692, 31526225), (775, 28149868), (865, 25220980), (950, 22964366), (1178, 18519650), (1550, 14074934), (1730, 12610490), (1900, 11482183), (2141, 10189700), (2356, 9259825), (2945, 7407860), (3100, 7037467), (3287, 6637100), (3460, 6305245), (4282, 5094850), (4325, 5044196), (5363, 4067900), (5890, 3703930), (6574, 3318550), (8564, 2547425), (8650, 2522098), (10705, 2037940), (10726, 2033950), (11780, 1851965), (13148, 1659275), (14725, 1481572), (16435, 1327420), (17300, 1261049), (21410, 1018970), (21452, 1016975), (26815, 813580), (29450, 740786), (32870, 663710), (40679, 536300), (42820, 509485), (53525, 407588), (53630, 406790), (58900, 370393), (65740, 331855), (66371, 328700), (81358, 268150), (82175, 265484), (101897, 214100), (107050, 203794), (107260, 203395), (132742, 164350), (134075, 162716)]