28783820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{743}}^1$

素因数の和:914

約数の個数: 48

約数和(自身を含む): 65620800

約数和(自身を除く): 36836980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 149, 260, 298, 596, 743, 745, 1486, 1490, 1937, 2972, 2980, 3715, 3874, 7430, 7748, 9659, 9685, 14860, 19318, 19370, 38636, 38740, 48295, 96590, 110707, 193180, 221414, 442828, 553535, 1107070, 1439191, 2214140, 2878382, 5756764, 7195955, 14391910, 28783820]

約数ペア:

[(1, 28783820), (2, 14391910), (4, 7195955), (5, 5756764), (10, 2878382), (13, 2214140), (20, 1439191), (26, 1107070), (52, 553535), (65, 442828), (130, 221414), (149, 193180), (260, 110707), (298, 96590), (596, 48295), (743, 38740), (745, 38636), (1486, 19370), (1490, 19318), (1937, 14860), (2972, 9685), (2980, 9659), (3715, 7748), (3874, 7430)]