20293000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1$

素因数の和:264

約数の個数: 128

約数和(自身を含む): 58705920

約数和(自身を除く): 38412920

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 91, 100, 104, 125, 130, 140, 175, 182, 200, 223, 250, 260, 280, 325, 350, 364, 446, 455, 500, 520, 650, 700, 728, 875, 892, 910, 1000, 1115, 1300, 1400, 1561, 1625, 1750, 1784, 1820, 2230, 2275, 2600, 2899, 3122, 3250, 3500, 3640, 4460, 4550, 5575, 5798, 6244, 6500, 7000, 7805, 8920, 9100, 11150, 11375, 11596, 12488, 13000, 14495, 15610, 18200, 20293, 22300, 22750, 23192, 27875, 28990, 31220, 39025, 40586, 44600, 45500, 55750, 57980, 62440, 72475, 78050, 81172, 91000, 101465, 111500, 115960, 144950, 156100, 162344, 195125, 202930, 223000, 289900, 312200, 362375, 390250, 405860, 507325, 579800, 724750, 780500, 811720, 1014650, 1449500, 1561000, 2029300, 2536625, 2899000, 4058600, 5073250, 10146500, 20293000]

約数ペア:

[(1, 20293000), (2, 10146500), (4, 5073250), (5, 4058600), (7, 2899000), (8, 2536625), (10, 2029300), (13, 1561000), (14, 1449500), (20, 1014650), (25, 811720), (26, 780500), (28, 724750), (35, 579800), (40, 507325), (50, 405860), (52, 390250), (56, 362375), (65, 312200), (70, 289900), (91, 223000), (100, 202930), (104, 195125), (125, 162344), (130, 156100), (140, 144950), (175, 115960), (182, 111500), (200, 101465), (223, 91000), (250, 81172), (260, 78050), (280, 72475), (325, 62440), (350, 57980), (364, 55750), (446, 45500), (455, 44600), (500, 40586), (520, 39025), (650, 31220), (700, 28990), (728, 27875), (875, 23192), (892, 22750), (910, 22300), (1000, 20293), (1115, 18200), (1300, 15610), (1400, 14495), (1561, 13000), (1625, 12488), (1750, 11596), (1784, 11375), (1820, 11150), (2230, 9100), (2275, 8920), (2600, 7805), (2899, 7000), (3122, 6500), (3250, 6244), (3500, 5798), (3640, 5575), (4460, 4550)]