406688240

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{14821}}^1$

素因数の和:14855

約数の個数: 80

約数和(自身を含む): 1102756800

約数和(自身を除く): 696068560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2744, 3430, 3920, 5488, 6860, 13720, 14821, 27440, 29642, 59284, 74105, 103747, 118568, 148210, 207494, 237136, 296420, 414988, 518735, 592840, 726229, 829976, 1037470, 1185680, 1452458, 1659952, 2074940, 2904916, 3631145, 4149880, 5083603, 5809832, 7262290, 8299760, 10167206, 11619664, 14524580, 20334412, 25418015, 29049160, 40668824, 50836030, 58098320, 81337648, 101672060, 203344120, 406688240]

約数ペア:

[(1, 406688240), (2, 203344120), (4, 101672060), (5, 81337648), (7, 58098320), (8, 50836030), (10, 40668824), (14, 29049160), (16, 25418015), (20, 20334412), (28, 14524580), (35, 11619664), (40, 10167206), (49, 8299760), (56, 7262290), (70, 5809832), (80, 5083603), (98, 4149880), (112, 3631145), (140, 2904916), (196, 2074940), (245, 1659952), (280, 1452458), (343, 1185680), (392, 1037470), (490, 829976), (560, 726229), (686, 592840), (784, 518735), (980, 414988), (1372, 296420), (1715, 237136), (1960, 207494), (2744, 148210), (3430, 118568), (3920, 103747), (5488, 74105), (6860, 59284), (13720, 29642), (14821, 27440)]