18210940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:163

約数の個数: 96

約数和(自身を含む): 44997120

約数和(自身を除く): 26786180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 59, 61, 92, 110, 115, 118, 122, 220, 230, 236, 244, 253, 295, 305, 460, 506, 590, 610, 649, 671, 1012, 1180, 1220, 1265, 1298, 1342, 1357, 1403, 2530, 2596, 2684, 2714, 2806, 3245, 3355, 3599, 5060, 5428, 5612, 6490, 6710, 6785, 7015, 7198, 12980, 13420, 13570, 14030, 14396, 14927, 15433, 17995, 27140, 28060, 29854, 30866, 35990, 39589, 59708, 61732, 71980, 74635, 77165, 79178, 82777, 149270, 154330, 158356, 165554, 197945, 298540, 308660, 331108, 395890, 413885, 791780, 827770, 910547, 1655540, 1821094, 3642188, 4552735, 9105470, 18210940]

約数ペア:

[(1, 18210940), (2, 9105470), (4, 4552735), (5, 3642188), (10, 1821094), (11, 1655540), (20, 910547), (22, 827770), (23, 791780), (44, 413885), (46, 395890), (55, 331108), (59, 308660), (61, 298540), (92, 197945), (110, 165554), (115, 158356), (118, 154330), (122, 149270), (220, 82777), (230, 79178), (236, 77165), (244, 74635), (253, 71980), (295, 61732), (305, 59708), (460, 39589), (506, 35990), (590, 30866), (610, 29854), (649, 28060), (671, 27140), (1012, 17995), (1180, 15433), (1220, 14927), (1265, 14396), (1298, 14030), (1342, 13570), (1357, 13420), (1403, 12980), (2530, 7198), (2596, 7015), (2684, 6785), (2714, 6710), (2806, 6490), (3245, 5612), (3355, 5428), (3599, 5060)]