17684420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4001}}^1$

素因数の和:4040

約数の個数: 48

約数和(自身を含む): 42357168

約数和(自身を除く): 24672748

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4001, 4420, 8002, 16004, 20005, 40010, 52013, 68017, 80020, 104026, 136034, 208052, 260065, 272068, 340085, 520130, 680170, 884221, 1040260, 1360340, 1768442, 3536884, 4421105, 8842210, 17684420]

約数ペア:

[(1, 17684420), (2, 8842210), (4, 4421105), (5, 3536884), (10, 1768442), (13, 1360340), (17, 1040260), (20, 884221), (26, 680170), (34, 520130), (52, 340085), (65, 272068), (68, 260065), (85, 208052), (130, 136034), (170, 104026), (221, 80020), (260, 68017), (340, 52013), (442, 40010), (884, 20005), (1105, 16004), (2210, 8002), (4001, 4420)]