28423900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1$

素因数の和:271

約数の個数: 72

約数和(自身を含む): 65245824

約数和(自身を除く): 36821924

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 53, 62, 100, 106, 124, 155, 173, 212, 265, 310, 346, 530, 620, 692, 775, 865, 1060, 1325, 1550, 1643, 1730, 2650, 3100, 3286, 3460, 4325, 5300, 5363, 6572, 8215, 8650, 9169, 10726, 16430, 17300, 18338, 21452, 26815, 32860, 36676, 41075, 45845, 53630, 82150, 91690, 107260, 134075, 164300, 183380, 229225, 268150, 284239, 458450, 536300, 568478, 916900, 1136956, 1421195, 2842390, 5684780, 7105975, 14211950, 28423900]

約数ペア:

[(1, 28423900), (2, 14211950), (4, 7105975), (5, 5684780), (10, 2842390), (20, 1421195), (25, 1136956), (31, 916900), (50, 568478), (53, 536300), (62, 458450), (100, 284239), (106, 268150), (124, 229225), (155, 183380), (173, 164300), (212, 134075), (265, 107260), (310, 91690), (346, 82150), (530, 53630), (620, 45845), (692, 41075), (775, 36676), (865, 32860), (1060, 26815), (1325, 21452), (1550, 18338), (1643, 17300), (1730, 16430), (2650, 10726), (3100, 9169), (3286, 8650), (3460, 8215), (4325, 6572), (5300, 5363)]