128899420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{269}}^1$

素因数の和:407

約数の個数: 96

約数和(自身を含む): 311169600

約数和(自身を除く): 182270180

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 97, 130, 190, 194, 247, 260, 269, 380, 388, 485, 494, 538, 970, 988, 1076, 1235, 1261, 1345, 1843, 1940, 2470, 2522, 2690, 3497, 3686, 4940, 5044, 5111, 5380, 6305, 6994, 7372, 9215, 10222, 12610, 13988, 17485, 18430, 20444, 23959, 25220, 25555, 26093, 34970, 36860, 47918, 51110, 52186, 66443, 69940, 95836, 102220, 104372, 119795, 130465, 132886, 239590, 260930, 265772, 332215, 339209, 479180, 495767, 521860, 664430, 678418, 991534, 1328860, 1356836, 1696045, 1983068, 2478835, 3392090, 4957670, 6444971, 6784180, 9915340, 12889942, 25779884, 32224855, 64449710, 128899420]

約数ペア:

[(1, 128899420), (2, 64449710), (4, 32224855), (5, 25779884), (10, 12889942), (13, 9915340), (19, 6784180), (20, 6444971), (26, 4957670), (38, 3392090), (52, 2478835), (65, 1983068), (76, 1696045), (95, 1356836), (97, 1328860), (130, 991534), (190, 678418), (194, 664430), (247, 521860), (260, 495767), (269, 479180), (380, 339209), (388, 332215), (485, 265772), (494, 260930), (538, 239590), (970, 132886), (988, 130465), (1076, 119795), (1235, 104372), (1261, 102220), (1345, 95836), (1843, 69940), (1940, 66443), (2470, 52186), (2522, 51110), (2690, 47918), (3497, 36860), (3686, 34970), (4940, 26093), (5044, 25555), (5111, 25220), (5380, 23959), (6305, 20444), (6994, 18430), (7372, 17485), (9215, 13988), (10222, 12610)]