81359460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4967}}^1$

素因数の和:5002

約数の個数: 144

約数和(自身を含む): 303803136

約数和(自身を除く): 222443676

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1260, 1365, 1638, 1820, 2340, 2730, 3276, 4095, 4967, 5460, 8190, 9934, 14901, 16380, 19868, 24835, 29802, 34769, 44703, 49670, 59604, 64571, 69538, 74505, 89406, 99340, 104307, 129142, 139076, 149010, 173845, 178812, 193713, 208614, 223515, 258284, 298020, 312921, 322855, 347690, 387426, 417228, 447030, 451997, 521535, 581139, 625842, 645710, 695380, 774852, 894060, 903994, 968565, 1043070, 1162278, 1251684, 1291420, 1355991, 1564605, 1807988, 1937130, 2086140, 2259985, 2324556, 2711982, 2905695, 3129210, 3874260, 4067973, 4519970, 5423964, 5811390, 6258420, 6779955, 8135946, 9039940, 11622780, 13559910, 16271892, 20339865, 27119820, 40679730, 81359460]

約数ペア:

[(1, 81359460), (2, 40679730), (3, 27119820), (4, 20339865), (5, 16271892), (6, 13559910), (7, 11622780), (9, 9039940), (10, 8135946), (12, 6779955), (13, 6258420), (14, 5811390), (15, 5423964), (18, 4519970), (20, 4067973), (21, 3874260), (26, 3129210), (28, 2905695), (30, 2711982), (35, 2324556), (36, 2259985), (39, 2086140), (42, 1937130), (45, 1807988), (52, 1564605), (60, 1355991), (63, 1291420), (65, 1251684), (70, 1162278), (78, 1043070), (84, 968565), (90, 903994), (91, 894060), (105, 774852), (117, 695380), (126, 645710), (130, 625842), (140, 581139), (156, 521535), (180, 451997), (182, 447030), (195, 417228), (210, 387426), (234, 347690), (252, 322855), (260, 312921), (273, 298020), (315, 258284), (364, 223515), (390, 208614), (420, 193713), (455, 178812), (468, 173845), (546, 149010), (585, 139076), (630, 129142), (780, 104307), (819, 99340), (910, 89406), (1092, 74505), (1170, 69538), (1260, 64571), (1365, 59604), (1638, 49670), (1820, 44703), (2340, 34769), (2730, 29802), (3276, 24835), (4095, 19868), (4967, 16380), (5460, 14901), (8190, 9934)]