77948240

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{15973}}^1$

素因数の和:16047

約数の個数: 40

約数和(自身を含む): 184212168

約数和(自身を除く): 106263928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 15973, 31946, 63892, 79865, 127784, 159730, 255568, 319460, 638920, 974353, 1277840, 1948706, 3897412, 4871765, 7794824, 9743530, 15589648, 19487060, 38974120, 77948240]

約数ペア:

[(1, 77948240), (2, 38974120), (4, 19487060), (5, 15589648), (8, 9743530), (10, 7794824), (16, 4871765), (20, 3897412), (40, 1948706), (61, 1277840), (80, 974353), (122, 638920), (244, 319460), (305, 255568), (488, 159730), (610, 127784), (976, 79865), (1220, 63892), (2440, 31946), (4880, 15973)]