3991940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 9072000

約数和(自身を除く): 5080060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 59, 68, 85, 118, 170, 199, 236, 295, 340, 398, 590, 796, 995, 1003, 1180, 1990, 2006, 3383, 3980, 4012, 5015, 6766, 10030, 11741, 13532, 16915, 20060, 23482, 33830, 46964, 58705, 67660, 117410, 199597, 234820, 399194, 798388, 997985, 1995970, 3991940]

約数ペア:

[(1, 3991940), (2, 1995970), (4, 997985), (5, 798388), (10, 399194), (17, 234820), (20, 199597), (34, 117410), (59, 67660), (68, 58705), (85, 46964), (118, 33830), (170, 23482), (199, 20060), (236, 16915), (295, 13532), (340, 11741), (398, 10030), (590, 6766), (796, 5015), (995, 4012), (1003, 3980), (1180, 3383), (1990, 2006)]