161644840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1171}}^1$

素因数の和:1235

約数の個数: 128

約数和(自身を含む): 455673600

約数和(自身を除く): 294028760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 29, 34, 35, 40, 56, 58, 68, 70, 85, 116, 119, 136, 140, 145, 170, 203, 232, 238, 280, 290, 340, 406, 476, 493, 580, 595, 680, 812, 952, 986, 1015, 1160, 1171, 1190, 1624, 1972, 2030, 2342, 2380, 2465, 3451, 3944, 4060, 4684, 4760, 4930, 5855, 6902, 8120, 8197, 9368, 9860, 11710, 13804, 16394, 17255, 19720, 19907, 23420, 27608, 32788, 33959, 34510, 39814, 40985, 46840, 65576, 67918, 69020, 79628, 81970, 99535, 135836, 138040, 139349, 159256, 163940, 169795, 199070, 237713, 271672, 278698, 327880, 339590, 398140, 475426, 557396, 577303, 679180, 696745, 796280, 950852, 1114792, 1154606, 1188565, 1358360, 1393490, 1901704, 2309212, 2377130, 2786980, 2886515, 4041121, 4618424, 4754260, 5573960, 5773030, 8082242, 9508520, 11546060, 16164484, 20205605, 23092120, 32328968, 40411210, 80822420, 161644840]

約数ペア:

[(1, 161644840), (2, 80822420), (4, 40411210), (5, 32328968), (7, 23092120), (8, 20205605), (10, 16164484), (14, 11546060), (17, 9508520), (20, 8082242), (28, 5773030), (29, 5573960), (34, 4754260), (35, 4618424), (40, 4041121), (56, 2886515), (58, 2786980), (68, 2377130), (70, 2309212), (85, 1901704), (116, 1393490), (119, 1358360), (136, 1188565), (140, 1154606), (145, 1114792), (170, 950852), (203, 796280), (232, 696745), (238, 679180), (280, 577303), (290, 557396), (340, 475426), (406, 398140), (476, 339590), (493, 327880), (580, 278698), (595, 271672), (680, 237713), (812, 199070), (952, 169795), (986, 163940), (1015, 159256), (1160, 139349), (1171, 138040), (1190, 135836), (1624, 99535), (1972, 81970), (2030, 79628), (2342, 69020), (2380, 67918), (2465, 65576), (3451, 46840), (3944, 40985), (4060, 39814), (4684, 34510), (4760, 33959), (4930, 32788), (5855, 27608), (6902, 23420), (8120, 19907), (8197, 19720), (9368, 17255), (9860, 16394), (11710, 13804)]