449918720

素因数分解:

$2^8\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1123}}^1$

素因数の和:1457

約数の個数: 72

約数和(自身を含む): 1082101776

約数和(自身を除く): 632183056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 313, 320, 626, 640, 1123, 1252, 1280, 1565, 2246, 2504, 3130, 4492, 5008, 5615, 6260, 8984, 10016, 11230, 12520, 17968, 20032, 22460, 25040, 35936, 40064, 44920, 50080, 71872, 80128, 89840, 100160, 143744, 179680, 200320, 287488, 351499, 359360, 400640, 702998, 718720, 1405996, 1437440, 1757495, 2811992, 3514990, 5623984, 7029980, 11247968, 14059960, 22495936, 28119920, 44991872, 56239840, 89983744, 112479680, 224959360, 449918720]

約数ペア:

[(1, 449918720), (2, 224959360), (4, 112479680), (5, 89983744), (8, 56239840), (10, 44991872), (16, 28119920), (20, 22495936), (32, 14059960), (40, 11247968), (64, 7029980), (80, 5623984), (128, 3514990), (160, 2811992), (256, 1757495), (313, 1437440), (320, 1405996), (626, 718720), (640, 702998), (1123, 400640), (1252, 359360), (1280, 351499), (1565, 287488), (2246, 200320), (2504, 179680), (3130, 143744), (4492, 100160), (5008, 89840), (5615, 80128), (6260, 71872), (8984, 50080), (10016, 44920), (11230, 40064), (12520, 35936), (17968, 25040), (20032, 22460)]