20236719880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2048251}}^1$

素因数の和:2048294

約数の個数: 64

約数和(自身を含む): 51615950400

約数和(自身を除く): 31379230520

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 9880, 2048251, 4096502, 8193004, 10241255, 16386008, 20482510, 26627263, 38916769, 40965020, 53254526, 77833538, 81930040, 106509052, 133136315, 155667076, 194583845, 213018104, 266272630, 311334152, 389167690, 505917997, 532545260, 778335380, 1011835994, 1065090520, 1556670760, 2023671988, 2529589985, 4047343976, 5059179970, 10118359940, 20236719880]

約数ペア:

[(1, 20236719880), (2, 10118359940), (4, 5059179970), (5, 4047343976), (8, 2529589985), (10, 2023671988), (13, 1556670760), (19, 1065090520), (20, 1011835994), (26, 778335380), (38, 532545260), (40, 505917997), (52, 389167690), (65, 311334152), (76, 266272630), (95, 213018104), (104, 194583845), (130, 155667076), (152, 133136315), (190, 106509052), (247, 81930040), (260, 77833538), (380, 53254526), (494, 40965020), (520, 38916769), (760, 26627263), (988, 20482510), (1235, 16386008), (1976, 10241255), (2470, 8193004), (4940, 4096502), (9880, 2048251)]