72480015

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:322

約数の個数: 80

約数和(自身を含む): 140507136

約数和(自身を除く): 68027121

約数列:

[1, 3, 5, 9, 15, 23, 27, 31, 45, 69, 81, 93, 115, 135, 155, 207, 251, 279, 345, 405, 465, 621, 713, 753, 837, 1035, 1255, 1395, 1863, 2139, 2259, 2511, 3105, 3565, 3765, 4185, 5773, 6417, 6777, 7781, 9315, 10695, 11295, 12555, 17319, 19251, 20331, 23343, 28865, 32085, 33885, 38905, 51957, 57753, 70029, 86595, 96255, 101655, 116715, 155871, 178963, 210087, 259785, 288765, 350145, 467613, 536889, 630261, 779355, 894815, 1050435, 1610667, 2338065, 2684445, 3151305, 4832001, 8053335, 14496003, 24160005, 72480015]

約数ペア:

[(1, 72480015), (3, 24160005), (5, 14496003), (9, 8053335), (15, 4832001), (23, 3151305), (27, 2684445), (31, 2338065), (45, 1610667), (69, 1050435), (81, 894815), (93, 779355), (115, 630261), (135, 536889), (155, 467613), (207, 350145), (251, 288765), (279, 259785), (345, 210087), (405, 178963), (465, 155871), (621, 116715), (713, 101655), (753, 96255), (837, 86595), (1035, 70029), (1255, 57753), (1395, 51957), (1863, 38905), (2139, 33885), (2259, 32085), (2511, 28865), (3105, 23343), (3565, 20331), (3765, 19251), (4185, 17319), (5773, 12555), (6417, 11295), (6777, 10695), (7781, 9315)]