28663900

素因数分解:

$2^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:239

約数の個数: 72

約数和(自身を含む): 65440256

約数和(自身を除く): 36776356

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 50, 61, 74, 100, 122, 127, 148, 185, 244, 254, 305, 370, 508, 610, 635, 740, 925, 1220, 1270, 1525, 1850, 2257, 2540, 3050, 3175, 3700, 4514, 4699, 6100, 6350, 7747, 9028, 9398, 11285, 12700, 15494, 18796, 22570, 23495, 30988, 38735, 45140, 46990, 56425, 77470, 93980, 112850, 117475, 154940, 193675, 225700, 234950, 286639, 387350, 469900, 573278, 774700, 1146556, 1433195, 2866390, 5732780, 7165975, 14331950, 28663900]

約数ペア:

[(1, 28663900), (2, 14331950), (4, 7165975), (5, 5732780), (10, 2866390), (20, 1433195), (25, 1146556), (37, 774700), (50, 573278), (61, 469900), (74, 387350), (100, 286639), (122, 234950), (127, 225700), (148, 193675), (185, 154940), (244, 117475), (254, 112850), (305, 93980), (370, 77470), (508, 56425), (610, 46990), (635, 45140), (740, 38735), (925, 30988), (1220, 23495), (1270, 22570), (1525, 18796), (1850, 15494), (2257, 12700), (2540, 11285), (3050, 9398), (3175, 9028), (3700, 7747), (4514, 6350), (4699, 6100)]