28163960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{23}}^2$

素因数の和:90

約数の個数: 96

約数和(自身を含む): 72863280

約数和(自身を除く): 44699320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 121, 184, 220, 230, 242, 253, 440, 460, 484, 506, 529, 605, 920, 968, 1012, 1058, 1210, 1265, 1331, 2024, 2116, 2420, 2530, 2645, 2662, 2783, 4232, 4840, 5060, 5290, 5324, 5566, 5819, 6655, 10120, 10580, 10648, 11132, 11638, 13310, 13915, 21160, 22264, 23276, 26620, 27830, 29095, 30613, 46552, 53240, 55660, 58190, 61226, 64009, 111320, 116380, 122452, 128018, 153065, 232760, 244904, 256036, 306130, 320045, 512072, 612260, 640090, 704099, 1224520, 1280180, 1408198, 2560360, 2816396, 3520495, 5632792, 7040990, 14081980, 28163960]

約数ペア:

[(1, 28163960), (2, 14081980), (4, 7040990), (5, 5632792), (8, 3520495), (10, 2816396), (11, 2560360), (20, 1408198), (22, 1280180), (23, 1224520), (40, 704099), (44, 640090), (46, 612260), (55, 512072), (88, 320045), (92, 306130), (110, 256036), (115, 244904), (121, 232760), (184, 153065), (220, 128018), (230, 122452), (242, 116380), (253, 111320), (440, 64009), (460, 61226), (484, 58190), (506, 55660), (529, 53240), (605, 46552), (920, 30613), (968, 29095), (1012, 27830), (1058, 26620), (1210, 23276), (1265, 22264), (1331, 21160), (2024, 13915), (2116, 13310), (2420, 11638), (2530, 11132), (2645, 10648), (2662, 10580), (2783, 10120), (4232, 6655), (4840, 5819), (5060, 5566), (5290, 5324)]