201951620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{149}}^1\times {\mathrm{401}}^1$

素因数の和:585

約数の個数: 72

約数和(自身を含む): 463465800

約数和(自身を除く): 261514180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 149, 169, 260, 298, 338, 401, 596, 676, 745, 802, 845, 1490, 1604, 1690, 1937, 2005, 2980, 3380, 3874, 4010, 5213, 7748, 8020, 9685, 10426, 19370, 20852, 25181, 26065, 38740, 50362, 52130, 59749, 67769, 100724, 104260, 119498, 125905, 135538, 238996, 251810, 271076, 298745, 338845, 503620, 597490, 677690, 776737, 1194980, 1355380, 1553474, 3106948, 3883685, 7767370, 10097581, 15534740, 20195162, 40390324, 50487905, 100975810, 201951620]

約数ペア:

[(1, 201951620), (2, 100975810), (4, 50487905), (5, 40390324), (10, 20195162), (13, 15534740), (20, 10097581), (26, 7767370), (52, 3883685), (65, 3106948), (130, 1553474), (149, 1355380), (169, 1194980), (260, 776737), (298, 677690), (338, 597490), (401, 503620), (596, 338845), (676, 298745), (745, 271076), (802, 251810), (845, 238996), (1490, 135538), (1604, 125905), (1690, 119498), (1937, 104260), (2005, 100724), (2980, 67769), (3380, 59749), (3874, 52130), (4010, 50362), (5213, 38740), (7748, 26065), (8020, 25181), (9685, 20852), (10426, 19370)]