20199803780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1489}}^1\times {\mathrm{52177}}^1$

素因数の和:53688

約数の個数: 48

約数和(自身を含む): 45714189360

約数和(自身を除く): 25514385580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1489, 2978, 5956, 7445, 14890, 19357, 29780, 38714, 52177, 77428, 96785, 104354, 193570, 208708, 260885, 387140, 521770, 678301, 1043540, 1356602, 2713204, 3391505, 6783010, 13566020, 77691553, 155383106, 310766212, 388457765, 776915530, 1009990189, 1553831060, 2019980378, 4039960756, 5049950945, 10099901890, 20199803780]

約数ペア:

[(1, 20199803780), (2, 10099901890), (4, 5049950945), (5, 4039960756), (10, 2019980378), (13, 1553831060), (20, 1009990189), (26, 776915530), (52, 388457765), (65, 310766212), (130, 155383106), (260, 77691553), (1489, 13566020), (2978, 6783010), (5956, 3391505), (7445, 2713204), (14890, 1356602), (19357, 1043540), (29780, 678301), (38714, 521770), (52177, 387140), (77428, 260885), (96785, 208708), (104354, 193570)]