31500100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{281}}^1$

素因数の和:373

約数の個数: 72

約数和(自身を含む): 73432800

約数和(自身を除く): 41932700

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 59, 76, 95, 100, 118, 190, 236, 281, 295, 380, 475, 562, 590, 950, 1121, 1124, 1180, 1405, 1475, 1900, 2242, 2810, 2950, 4484, 5339, 5605, 5620, 5900, 7025, 10678, 11210, 14050, 16579, 21356, 22420, 26695, 28025, 28100, 33158, 53390, 56050, 66316, 82895, 106780, 112100, 133475, 165790, 266950, 315001, 331580, 414475, 533900, 630002, 828950, 1260004, 1575005, 1657900, 3150010, 6300020, 7875025, 15750050, 31500100]

約数ペア:

[(1, 31500100), (2, 15750050), (4, 7875025), (5, 6300020), (10, 3150010), (19, 1657900), (20, 1575005), (25, 1260004), (38, 828950), (50, 630002), (59, 533900), (76, 414475), (95, 331580), (100, 315001), (118, 266950), (190, 165790), (236, 133475), (281, 112100), (295, 106780), (380, 82895), (475, 66316), (562, 56050), (590, 53390), (950, 33158), (1121, 28100), (1124, 28025), (1180, 26695), (1405, 22420), (1475, 21356), (1900, 16579), (2242, 14050), (2810, 11210), (2950, 10678), (4484, 7025), (5339, 5900), (5605, 5620)]