101520040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{139}}^1$

素因数の和:231

約数の個数: 96

約数和(自身を含む): 250236000

約数和(自身を除く): 148715960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 139, 152, 155, 190, 248, 278, 310, 380, 556, 589, 620, 695, 760, 961, 1112, 1178, 1240, 1390, 1922, 2356, 2641, 2780, 2945, 3844, 4309, 4712, 4805, 5282, 5560, 5890, 7688, 8618, 9610, 10564, 11780, 13205, 17236, 18259, 19220, 21128, 21545, 23560, 26410, 34472, 36518, 38440, 43090, 52820, 73036, 81871, 86180, 91295, 105640, 133579, 146072, 163742, 172360, 182590, 267158, 327484, 365180, 409355, 534316, 654968, 667895, 730360, 818710, 1068632, 1335790, 1637420, 2538001, 2671580, 3274840, 5076002, 5343160, 10152004, 12690005, 20304008, 25380010, 50760020, 101520040]

約数ペア:

[(1, 101520040), (2, 50760020), (4, 25380010), (5, 20304008), (8, 12690005), (10, 10152004), (19, 5343160), (20, 5076002), (31, 3274840), (38, 2671580), (40, 2538001), (62, 1637420), (76, 1335790), (95, 1068632), (124, 818710), (139, 730360), (152, 667895), (155, 654968), (190, 534316), (248, 409355), (278, 365180), (310, 327484), (380, 267158), (556, 182590), (589, 172360), (620, 163742), (695, 146072), (760, 133579), (961, 105640), (1112, 91295), (1178, 86180), (1240, 81871), (1390, 73036), (1922, 52820), (2356, 43090), (2641, 38440), (2780, 36518), (2945, 34472), (3844, 26410), (4309, 23560), (4712, 21545), (4805, 21128), (5282, 19220), (5560, 18259), (5890, 17236), (7688, 13205), (8618, 11780), (9610, 10564)]