78903680

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:188

約数の個数: 128

約数和(自身を含む): 201519360

約数和(自身を除く): 122615680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 64, 80, 82, 97, 124, 128, 155, 160, 164, 194, 205, 248, 310, 320, 328, 388, 410, 485, 496, 620, 640, 656, 776, 820, 970, 992, 1240, 1271, 1312, 1552, 1640, 1940, 1984, 2480, 2542, 2624, 3007, 3104, 3280, 3880, 3968, 3977, 4960, 5084, 5248, 6014, 6208, 6355, 6560, 7760, 7954, 9920, 10168, 12028, 12416, 12710, 13120, 15035, 15520, 15908, 19840, 19885, 20336, 24056, 25420, 26240, 30070, 31040, 31816, 39770, 40672, 48112, 50840, 60140, 62080, 63632, 79540, 81344, 96224, 101680, 120280, 123287, 127264, 159080, 162688, 192448, 203360, 240560, 246574, 254528, 318160, 384896, 406720, 481120, 493148, 509056, 616435, 636320, 813440, 962240, 986296, 1232870, 1272640, 1924480, 1972592, 2465740, 2545280, 3945184, 4931480, 7890368, 9862960, 15780736, 19725920, 39451840, 78903680]

約数ペア:

[(1, 78903680), (2, 39451840), (4, 19725920), (5, 15780736), (8, 9862960), (10, 7890368), (16, 4931480), (20, 3945184), (31, 2545280), (32, 2465740), (40, 1972592), (41, 1924480), (62, 1272640), (64, 1232870), (80, 986296), (82, 962240), (97, 813440), (124, 636320), (128, 616435), (155, 509056), (160, 493148), (164, 481120), (194, 406720), (205, 384896), (248, 318160), (310, 254528), (320, 246574), (328, 240560), (388, 203360), (410, 192448), (485, 162688), (496, 159080), (620, 127264), (640, 123287), (656, 120280), (776, 101680), (820, 96224), (970, 81344), (992, 79540), (1240, 63632), (1271, 62080), (1312, 60140), (1552, 50840), (1640, 48112), (1940, 40672), (1984, 39770), (2480, 31816), (2542, 31040), (2624, 30070), (3007, 26240), (3104, 25420), (3280, 24056), (3880, 20336), (3968, 19885), (3977, 19840), (4960, 15908), (5084, 15520), (5248, 15035), (6014, 13120), (6208, 12710), (6355, 12416), (6560, 12028), (7760, 10168), (7954, 9920)]