248858240

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:382

約数の個数: 128

約数和(自身を含む): 639478800

約数和(自身を除く): 390620560

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 89, 128, 136, 160, 170, 178, 257, 272, 320, 340, 356, 445, 514, 544, 640, 680, 712, 890, 1028, 1088, 1285, 1360, 1424, 1513, 1780, 2056, 2176, 2570, 2720, 2848, 3026, 3560, 4112, 4369, 5140, 5440, 5696, 6052, 7120, 7565, 8224, 8738, 10280, 10880, 11392, 12104, 14240, 15130, 16448, 17476, 20560, 21845, 22873, 24208, 28480, 30260, 32896, 34952, 41120, 43690, 45746, 48416, 56960, 60520, 69904, 82240, 87380, 91492, 96832, 114365, 121040, 139808, 164480, 174760, 182984, 193664, 228730, 242080, 279616, 349520, 365968, 388841, 457460, 484160, 559232, 699040, 731936, 777682, 914920, 968320, 1398080, 1463872, 1555364, 1829840, 1944205, 2796160, 2927744, 3110728, 3659680, 3888410, 6221456, 7319360, 7776820, 12442912, 14638720, 15553640, 24885824, 31107280, 49771648, 62214560, 124429120, 248858240]

約数ペア:

[(1, 248858240), (2, 124429120), (4, 62214560), (5, 49771648), (8, 31107280), (10, 24885824), (16, 15553640), (17, 14638720), (20, 12442912), (32, 7776820), (34, 7319360), (40, 6221456), (64, 3888410), (68, 3659680), (80, 3110728), (85, 2927744), (89, 2796160), (128, 1944205), (136, 1829840), (160, 1555364), (170, 1463872), (178, 1398080), (257, 968320), (272, 914920), (320, 777682), (340, 731936), (356, 699040), (445, 559232), (514, 484160), (544, 457460), (640, 388841), (680, 365968), (712, 349520), (890, 279616), (1028, 242080), (1088, 228730), (1285, 193664), (1360, 182984), (1424, 174760), (1513, 164480), (1780, 139808), (2056, 121040), (2176, 114365), (2570, 96832), (2720, 91492), (2848, 87380), (3026, 82240), (3560, 69904), (4112, 60520), (4369, 56960), (5140, 48416), (5440, 45746), (5696, 43690), (6052, 41120), (7120, 34952), (7565, 32896), (8224, 30260), (8738, 28480), (10280, 24208), (10880, 22873), (11392, 21845), (12104, 20560), (14240, 17476), (15130, 16448)]