25156979780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{471281}}^1$

素因数の和:471464

約数の個数: 48

約数和(自身を含む): 56293692336

約数和(自身を除く): 31136712556

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 157, 170, 314, 340, 628, 785, 1570, 2669, 3140, 5338, 10676, 13345, 26690, 53380, 471281, 942562, 1885124, 2356405, 4712810, 8011777, 9425620, 16023554, 32047108, 40058885, 73991117, 80117770, 147982234, 160235540, 295964468, 369955585, 739911170, 1257848989, 1479822340, 2515697978, 5031395956, 6289244945, 12578489890, 25156979780]

約数ペア:

[(1, 25156979780), (2, 12578489890), (4, 6289244945), (5, 5031395956), (10, 2515697978), (17, 1479822340), (20, 1257848989), (34, 739911170), (68, 369955585), (85, 295964468), (157, 160235540), (170, 147982234), (314, 80117770), (340, 73991117), (628, 40058885), (785, 32047108), (1570, 16023554), (2669, 9425620), (3140, 8011777), (5338, 4712810), (10676, 2356405), (13345, 1885124), (26690, 942562), (53380, 471281)]