81931300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{353}}^1$

素因数の和:589

約数の個数: 72

約数和(自身を含む): 195424992

約数和(自身を除く): 113493692

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 211, 220, 275, 353, 422, 550, 706, 844, 1055, 1100, 1412, 1765, 2110, 2321, 3530, 3883, 4220, 4642, 5275, 7060, 7766, 8825, 9284, 10550, 11605, 15532, 17650, 19415, 21100, 23210, 35300, 38830, 46420, 58025, 74483, 77660, 97075, 116050, 148966, 194150, 232100, 297932, 372415, 388300, 744830, 819313, 1489660, 1638626, 1862075, 3277252, 3724150, 4096565, 7448300, 8193130, 16386260, 20482825, 40965650, 81931300]

約数ペア:

[(1, 81931300), (2, 40965650), (4, 20482825), (5, 16386260), (10, 8193130), (11, 7448300), (20, 4096565), (22, 3724150), (25, 3277252), (44, 1862075), (50, 1638626), (55, 1489660), (100, 819313), (110, 744830), (211, 388300), (220, 372415), (275, 297932), (353, 232100), (422, 194150), (550, 148966), (706, 116050), (844, 97075), (1055, 77660), (1100, 74483), (1412, 58025), (1765, 46420), (2110, 38830), (2321, 35300), (3530, 23210), (3883, 21100), (4220, 19415), (4642, 17650), (5275, 15532), (7060, 11605), (7766, 10550), (8825, 9284)]