81941370

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1$

素因数の和:396

約数の個数: 128

約数和(自身を含む): 238436352

約数和(自身を除く): 156494982

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 41, 42, 62, 70, 82, 93, 105, 123, 155, 186, 205, 210, 217, 246, 287, 307, 310, 410, 434, 465, 574, 614, 615, 651, 861, 921, 930, 1085, 1230, 1271, 1302, 1435, 1535, 1722, 1842, 2149, 2170, 2542, 2870, 3070, 3255, 3813, 4298, 4305, 4605, 6355, 6447, 6510, 7626, 8610, 8897, 9210, 9517, 10745, 12587, 12710, 12894, 17794, 19034, 19065, 21490, 25174, 26691, 28551, 32235, 37761, 38130, 44485, 47585, 53382, 57102, 62935, 64470, 66619, 75522, 88109, 88970, 95170, 125870, 133238, 133455, 142755, 176218, 188805, 199857, 264327, 266910, 285510, 333095, 377610, 390197, 399714, 440545, 528654, 666190, 780394, 881090, 999285, 1170591, 1321635, 1950985, 1998570, 2341182, 2643270, 2731379, 3901970, 5462758, 5852955, 8194137, 11705910, 13656895, 16388274, 27313790, 40970685, 81941370]

約数ペア:

[(1, 81941370), (2, 40970685), (3, 27313790), (5, 16388274), (6, 13656895), (7, 11705910), (10, 8194137), (14, 5852955), (15, 5462758), (21, 3901970), (30, 2731379), (31, 2643270), (35, 2341182), (41, 1998570), (42, 1950985), (62, 1321635), (70, 1170591), (82, 999285), (93, 881090), (105, 780394), (123, 666190), (155, 528654), (186, 440545), (205, 399714), (210, 390197), (217, 377610), (246, 333095), (287, 285510), (307, 266910), (310, 264327), (410, 199857), (434, 188805), (465, 176218), (574, 142755), (614, 133455), (615, 133238), (651, 125870), (861, 95170), (921, 88970), (930, 88109), (1085, 75522), (1230, 66619), (1271, 64470), (1302, 62935), (1435, 57102), (1535, 53382), (1722, 47585), (1842, 44485), (2149, 38130), (2170, 37761), (2542, 32235), (2870, 28551), (3070, 26691), (3255, 25174), (3813, 21490), (4298, 19065), (4305, 19034), (4605, 17794), (6355, 12894), (6447, 12710), (6510, 12587), (7626, 10745), (8610, 9517), (8897, 9210)]