131239400

素因数分解:

$2^3\times 5^2\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:279

約数の個数: 96

約数和(自身を含む): 315883800

約数和(自身を除く): 184644400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 73, 89, 100, 101, 146, 178, 200, 202, 292, 356, 365, 404, 445, 505, 584, 712, 730, 808, 890, 1010, 1460, 1780, 1825, 2020, 2225, 2525, 2920, 3560, 3650, 4040, 4450, 5050, 6497, 7300, 7373, 8900, 8989, 10100, 12994, 14600, 14746, 17800, 17978, 20200, 25988, 29492, 32485, 35956, 36865, 44945, 51976, 58984, 64970, 71912, 73730, 89890, 129940, 147460, 162425, 179780, 184325, 224725, 259880, 294920, 324850, 359560, 368650, 449450, 649700, 656197, 737300, 898900, 1299400, 1312394, 1474600, 1797800, 2624788, 3280985, 5249576, 6561970, 13123940, 16404925, 26247880, 32809850, 65619700, 131239400]

約数ペア:

[(1, 131239400), (2, 65619700), (4, 32809850), (5, 26247880), (8, 16404925), (10, 13123940), (20, 6561970), (25, 5249576), (40, 3280985), (50, 2624788), (73, 1797800), (89, 1474600), (100, 1312394), (101, 1299400), (146, 898900), (178, 737300), (200, 656197), (202, 649700), (292, 449450), (356, 368650), (365, 359560), (404, 324850), (445, 294920), (505, 259880), (584, 224725), (712, 184325), (730, 179780), (808, 162425), (890, 147460), (1010, 129940), (1460, 89890), (1780, 73730), (1825, 71912), (2020, 64970), (2225, 58984), (2525, 51976), (2920, 44945), (3560, 36865), (3650, 35956), (4040, 32485), (4450, 29492), (5050, 25988), (6497, 20200), (7300, 17978), (7373, 17800), (8900, 14746), (8989, 14600), (10100, 12994)]