19599910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:229

約数の個数: 64

約数和(自身を含む): 41140224

約数和(自身を除く): 21540314

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 61, 110, 115, 122, 127, 230, 253, 254, 305, 506, 610, 635, 671, 1265, 1270, 1342, 1397, 1403, 2530, 2794, 2806, 2921, 3355, 5842, 6710, 6985, 7015, 7747, 13970, 14030, 14605, 15433, 15494, 29210, 30866, 32131, 38735, 64262, 77165, 77470, 85217, 154330, 160655, 170434, 178181, 321310, 356362, 426085, 852170, 890905, 1781810, 1959991, 3919982, 9799955, 19599910]

約数ペア:

[(1, 19599910), (2, 9799955), (5, 3919982), (10, 1959991), (11, 1781810), (22, 890905), (23, 852170), (46, 426085), (55, 356362), (61, 321310), (110, 178181), (115, 170434), (122, 160655), (127, 154330), (230, 85217), (253, 77470), (254, 77165), (305, 64262), (506, 38735), (610, 32131), (635, 30866), (671, 29210), (1265, 15494), (1270, 15433), (1342, 14605), (1397, 14030), (1403, 13970), (2530, 7747), (2794, 7015), (2806, 6985), (2921, 6710), (3355, 5842)]