976021960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{400009}}^1$

素因数の和:400081

約数の個数: 32

約数和(自身を含む): 2232055800

約数和(自身を除く): 1256033840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 400009, 800018, 1600036, 2000045, 3200072, 4000090, 8000180, 16000360, 24400549, 48801098, 97602196, 122002745, 195204392, 244005490, 488010980, 976021960]

約数ペア:

[(1, 976021960), (2, 488010980), (4, 244005490), (5, 195204392), (8, 122002745), (10, 97602196), (20, 48801098), (40, 24400549), (61, 16000360), (122, 8000180), (244, 4000090), (305, 3200072), (488, 2000045), (610, 1600036), (1220, 800018), (2440, 400009)]