19583440

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4013}}^1$

素因数の和:4087

約数の個数: 40

約数和(自身を含む): 46289448

約数和(自身を除く): 26706008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4013, 4880, 8026, 16052, 20065, 32104, 40130, 64208, 80260, 160520, 244793, 321040, 489586, 979172, 1223965, 1958344, 2447930, 3916688, 4895860, 9791720, 19583440]

約数ペア:

[(1, 19583440), (2, 9791720), (4, 4895860), (5, 3916688), (8, 2447930), (10, 1958344), (16, 1223965), (20, 979172), (40, 489586), (61, 321040), (80, 244793), (122, 160520), (244, 80260), (305, 64208), (488, 40130), (610, 32104), (976, 20065), (1220, 16052), (2440, 8026), (4013, 4880)]