101640320

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:206

約数の個数: 128

約数和(自身を含む): 258508800

約数和(自身を除く): 156868480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 47, 62, 64, 80, 94, 109, 124, 128, 155, 160, 188, 218, 235, 248, 310, 320, 376, 436, 470, 496, 545, 620, 640, 752, 872, 940, 992, 1090, 1240, 1457, 1504, 1744, 1880, 1984, 2180, 2480, 2914, 3008, 3379, 3488, 3760, 3968, 4360, 4960, 5123, 5828, 6016, 6758, 6976, 7285, 7520, 8720, 9920, 10246, 11656, 13516, 13952, 14570, 15040, 16895, 17440, 19840, 20492, 23312, 25615, 27032, 29140, 30080, 33790, 34880, 40984, 46624, 51230, 54064, 58280, 67580, 69760, 81968, 93248, 102460, 108128, 116560, 135160, 158813, 163936, 186496, 204920, 216256, 233120, 270320, 317626, 327872, 409840, 432512, 466240, 540640, 635252, 655744, 794065, 819680, 932480, 1081280, 1270504, 1588130, 1639360, 2162560, 2541008, 3176260, 3278720, 5082016, 6352520, 10164032, 12705040, 20328064, 25410080, 50820160, 101640320]

約数ペア:

[(1, 101640320), (2, 50820160), (4, 25410080), (5, 20328064), (8, 12705040), (10, 10164032), (16, 6352520), (20, 5082016), (31, 3278720), (32, 3176260), (40, 2541008), (47, 2162560), (62, 1639360), (64, 1588130), (80, 1270504), (94, 1081280), (109, 932480), (124, 819680), (128, 794065), (155, 655744), (160, 635252), (188, 540640), (218, 466240), (235, 432512), (248, 409840), (310, 327872), (320, 317626), (376, 270320), (436, 233120), (470, 216256), (496, 204920), (545, 186496), (620, 163936), (640, 158813), (752, 135160), (872, 116560), (940, 108128), (992, 102460), (1090, 93248), (1240, 81968), (1457, 69760), (1504, 67580), (1744, 58280), (1880, 54064), (1984, 51230), (2180, 46624), (2480, 40984), (2914, 34880), (3008, 33790), (3379, 30080), (3488, 29140), (3760, 27032), (3968, 25615), (4360, 23312), (4960, 20492), (5123, 19840), (5828, 17440), (6016, 16895), (6758, 15040), (6976, 14570), (7285, 13952), (7520, 13516), (8720, 11656), (9920, 10246)]