20101095

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:349

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 21370905

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 89, 105, 135, 189, 239, 267, 315, 445, 623, 717, 801, 945, 1195, 1335, 1673, 1869, 2151, 2403, 3115, 3585, 4005, 5019, 5607, 6453, 8365, 9345, 10755, 12015, 15057, 16821, 21271, 25095, 28035, 32265, 45171, 63813, 75285, 84105, 106355, 148897, 191439, 225855, 319065, 446691, 574317, 744485, 957195, 1340073, 2233455, 2871585, 4020219, 6700365, 20101095]

約数ペア:

[(1, 20101095), (3, 6700365), (5, 4020219), (7, 2871585), (9, 2233455), (15, 1340073), (21, 957195), (27, 744485), (35, 574317), (45, 446691), (63, 319065), (89, 225855), (105, 191439), (135, 148897), (189, 106355), (239, 84105), (267, 75285), (315, 63813), (445, 45171), (623, 32265), (717, 28035), (801, 25095), (945, 21271), (1195, 16821), (1335, 15057), (1673, 12015), (1869, 10755), (2151, 9345), (2403, 8365), (3115, 6453), (3585, 5607), (4005, 5019)]