28634620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{479}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 71245440

約数和(自身を除く): 42610820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 61, 70, 98, 122, 140, 196, 244, 245, 305, 427, 479, 490, 610, 854, 958, 980, 1220, 1708, 1916, 2135, 2395, 2989, 3353, 4270, 4790, 5978, 6706, 8540, 9580, 11956, 13412, 14945, 16765, 23471, 29219, 29890, 33530, 46942, 58438, 59780, 67060, 93884, 116876, 117355, 146095, 204533, 234710, 292190, 409066, 469420, 584380, 818132, 1022665, 1431731, 2045330, 2863462, 4090660, 5726924, 7158655, 14317310, 28634620]

約数ペア:

[(1, 28634620), (2, 14317310), (4, 7158655), (5, 5726924), (7, 4090660), (10, 2863462), (14, 2045330), (20, 1431731), (28, 1022665), (35, 818132), (49, 584380), (61, 469420), (70, 409066), (98, 292190), (122, 234710), (140, 204533), (196, 146095), (244, 117355), (245, 116876), (305, 93884), (427, 67060), (479, 59780), (490, 58438), (610, 46942), (854, 33530), (958, 29890), (980, 29219), (1220, 23471), (1708, 16765), (1916, 14945), (2135, 13412), (2395, 11956), (2989, 9580), (3353, 8540), (4270, 6706), (4790, 5978)]