25872640

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:108

約数の個数: 144

約数和(自身を含む): 69536880

約数和(自身を除く): 43664240

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 32, 34, 40, 41, 58, 64, 68, 80, 82, 85, 116, 128, 136, 145, 160, 164, 170, 205, 232, 256, 272, 290, 320, 328, 340, 410, 464, 493, 544, 580, 640, 656, 680, 697, 820, 928, 986, 1088, 1160, 1189, 1280, 1312, 1360, 1394, 1640, 1856, 1972, 2176, 2320, 2378, 2465, 2624, 2720, 2788, 3280, 3485, 3712, 3944, 4352, 4640, 4756, 4930, 5248, 5440, 5576, 5945, 6560, 6970, 7424, 7888, 9280, 9512, 9860, 10496, 10880, 11152, 11890, 13120, 13940, 15776, 18560, 19024, 19720, 20213, 21760, 22304, 23780, 26240, 27880, 31552, 37120, 38048, 39440, 40426, 44608, 47560, 52480, 55760, 63104, 76096, 78880, 80852, 89216, 95120, 101065, 111520, 126208, 152192, 157760, 161704, 178432, 190240, 202130, 223040, 304384, 315520, 323408, 380480, 404260, 446080, 631040, 646816, 760960, 808520, 892160, 1293632, 1521920, 1617040, 2587264, 3234080, 5174528, 6468160, 12936320, 25872640]

約数ペア:

[(1, 25872640), (2, 12936320), (4, 6468160), (5, 5174528), (8, 3234080), (10, 2587264), (16, 1617040), (17, 1521920), (20, 1293632), (29, 892160), (32, 808520), (34, 760960), (40, 646816), (41, 631040), (58, 446080), (64, 404260), (68, 380480), (80, 323408), (82, 315520), (85, 304384), (116, 223040), (128, 202130), (136, 190240), (145, 178432), (160, 161704), (164, 157760), (170, 152192), (205, 126208), (232, 111520), (256, 101065), (272, 95120), (290, 89216), (320, 80852), (328, 78880), (340, 76096), (410, 63104), (464, 55760), (493, 52480), (544, 47560), (580, 44608), (640, 40426), (656, 39440), (680, 38048), (697, 37120), (820, 31552), (928, 27880), (986, 26240), (1088, 23780), (1160, 22304), (1189, 21760), (1280, 20213), (1312, 19720), (1360, 19024), (1394, 18560), (1640, 15776), (1856, 13940), (1972, 13120), (2176, 11890), (2320, 11152), (2378, 10880), (2465, 10496), (2624, 9860), (2720, 9512), (2788, 9280), (3280, 7888), (3485, 7424), (3712, 6970), (3944, 6560), (4352, 5945), (4640, 5576), (4756, 5440), (4930, 5248)]