25248340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{269}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 60487560

約数和(自身を除く): 35239220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 269, 361, 380, 494, 538, 722, 988, 1076, 1235, 1345, 1444, 1805, 2470, 2690, 3497, 3610, 4693, 4940, 5111, 5380, 6994, 7220, 9386, 10222, 13988, 17485, 18772, 20444, 23465, 25555, 34970, 46930, 51110, 66443, 69940, 93860, 97109, 102220, 132886, 194218, 265772, 332215, 388436, 485545, 664430, 971090, 1262417, 1328860, 1942180, 2524834, 5049668, 6312085, 12624170, 25248340]

約数ペア:

[(1, 25248340), (2, 12624170), (4, 6312085), (5, 5049668), (10, 2524834), (13, 1942180), (19, 1328860), (20, 1262417), (26, 971090), (38, 664430), (52, 485545), (65, 388436), (76, 332215), (95, 265772), (130, 194218), (190, 132886), (247, 102220), (260, 97109), (269, 93860), (361, 69940), (380, 66443), (494, 51110), (538, 46930), (722, 34970), (988, 25555), (1076, 23465), (1235, 20444), (1345, 18772), (1444, 17485), (1805, 13988), (2470, 10222), (2690, 9386), (3497, 7220), (3610, 6994), (4693, 5380), (4940, 5111)]