40490216

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:730

約数の個数: 64

約数和(自身を含む): 88972800

約数和(自身を除く): 48482584

約数列:

[1, 2, 4, 8, 13, 19, 26, 31, 38, 52, 62, 76, 104, 124, 152, 247, 248, 403, 494, 589, 661, 806, 988, 1178, 1322, 1612, 1976, 2356, 2644, 3224, 4712, 5288, 7657, 8593, 12559, 15314, 17186, 20491, 25118, 30628, 34372, 40982, 50236, 61256, 68744, 81964, 100472, 163267, 163928, 266383, 326534, 389329, 532766, 653068, 778658, 1065532, 1306136, 1557316, 2131064, 3114632, 5061277, 10122554, 20245108, 40490216]

約数ペア:

[(1, 40490216), (2, 20245108), (4, 10122554), (8, 5061277), (13, 3114632), (19, 2131064), (26, 1557316), (31, 1306136), (38, 1065532), (52, 778658), (62, 653068), (76, 532766), (104, 389329), (124, 326534), (152, 266383), (247, 163928), (248, 163267), (403, 100472), (494, 81964), (589, 68744), (661, 61256), (806, 50236), (988, 40982), (1178, 34372), (1322, 30628), (1612, 25118), (1976, 20491), (2356, 17186), (2644, 15314), (3224, 12559), (4712, 8593), (5288, 7657)]