1900987720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{12373}}^1$

素因数の和:12574

約数の個数: 64

約数和(自身を含む): 4490277120

約数和(自身を除く): 2589289400

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 167, 184, 230, 334, 460, 668, 835, 920, 1336, 1670, 3340, 3841, 6680, 7682, 12373, 15364, 19205, 24746, 30728, 38410, 49492, 61865, 76820, 98984, 123730, 153640, 247460, 284579, 494920, 569158, 1138316, 1422895, 2066291, 2276632, 2845790, 4132582, 5691580, 8265164, 10331455, 11383160, 16530328, 20662910, 41325820, 47524693, 82651640, 95049386, 190098772, 237623465, 380197544, 475246930, 950493860, 1900987720]

約数ペア:

[(1, 1900987720), (2, 950493860), (4, 475246930), (5, 380197544), (8, 237623465), (10, 190098772), (20, 95049386), (23, 82651640), (40, 47524693), (46, 41325820), (92, 20662910), (115, 16530328), (167, 11383160), (184, 10331455), (230, 8265164), (334, 5691580), (460, 4132582), (668, 2845790), (835, 2276632), (920, 2066291), (1336, 1422895), (1670, 1138316), (3340, 569158), (3841, 494920), (6680, 284579), (7682, 247460), (12373, 153640), (15364, 123730), (19205, 98984), (24746, 76820), (30728, 61865), (38410, 49492)]