403778720

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{641}}^1$

素因数の和:814

約数の個数: 96

約数和(自身を含む): 994000896

約数和(自身を除く): 590222176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 127, 155, 160, 248, 254, 310, 496, 508, 620, 635, 641, 992, 1016, 1240, 1270, 1282, 2032, 2480, 2540, 2564, 3205, 3937, 4064, 4960, 5080, 5128, 6410, 7874, 10160, 10256, 12820, 15748, 19685, 19871, 20320, 20512, 25640, 31496, 39370, 39742, 51280, 62992, 78740, 79484, 81407, 99355, 102560, 125984, 157480, 158968, 162814, 198710, 314960, 317936, 325628, 397420, 407035, 629920, 635872, 651256, 794840, 814070, 1302512, 1589680, 1628140, 2523617, 2605024, 3179360, 3256280, 5047234, 6512560, 10094468, 12618085, 13025120, 20188936, 25236170, 40377872, 50472340, 80755744, 100944680, 201889360, 403778720]

約数ペア:

[(1, 403778720), (2, 201889360), (4, 100944680), (5, 80755744), (8, 50472340), (10, 40377872), (16, 25236170), (20, 20188936), (31, 13025120), (32, 12618085), (40, 10094468), (62, 6512560), (80, 5047234), (124, 3256280), (127, 3179360), (155, 2605024), (160, 2523617), (248, 1628140), (254, 1589680), (310, 1302512), (496, 814070), (508, 794840), (620, 651256), (635, 635872), (641, 629920), (992, 407035), (1016, 397420), (1240, 325628), (1270, 317936), (1282, 314960), (2032, 198710), (2480, 162814), (2540, 158968), (2564, 157480), (3205, 125984), (3937, 102560), (4064, 99355), (4960, 81407), (5080, 79484), (5128, 78740), (6410, 62992), (7874, 51280), (10160, 39742), (10256, 39370), (12820, 31496), (15748, 25640), (19685, 20512), (19871, 20320)]