71820760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:134

約数の個数: 128

約数和(自身を含む): 189734400

約数和(自身を除く): 117913640

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 71, 76, 88, 95, 110, 121, 142, 152, 190, 209, 220, 242, 284, 355, 380, 418, 440, 484, 568, 605, 710, 760, 781, 836, 968, 1045, 1210, 1331, 1349, 1420, 1562, 1672, 2090, 2299, 2420, 2662, 2698, 2840, 3124, 3905, 4180, 4598, 4840, 5324, 5396, 6248, 6655, 6745, 7810, 8360, 8591, 9196, 10648, 10792, 11495, 13310, 13490, 14839, 15620, 17182, 18392, 22990, 25289, 26620, 26980, 29678, 31240, 34364, 42955, 45980, 50578, 53240, 53960, 59356, 68728, 74195, 85910, 91960, 94501, 101156, 118712, 126445, 148390, 163229, 171820, 189002, 202312, 252890, 296780, 326458, 343640, 378004, 472505, 505780, 593560, 652916, 756008, 816145, 945010, 1011560, 1305832, 1632290, 1795519, 1890020, 3264580, 3591038, 3780040, 6529160, 7182076, 8977595, 14364152, 17955190, 35910380, 71820760]

約数ペア:

[(1, 71820760), (2, 35910380), (4, 17955190), (5, 14364152), (8, 8977595), (10, 7182076), (11, 6529160), (19, 3780040), (20, 3591038), (22, 3264580), (38, 1890020), (40, 1795519), (44, 1632290), (55, 1305832), (71, 1011560), (76, 945010), (88, 816145), (95, 756008), (110, 652916), (121, 593560), (142, 505780), (152, 472505), (190, 378004), (209, 343640), (220, 326458), (242, 296780), (284, 252890), (355, 202312), (380, 189002), (418, 171820), (440, 163229), (484, 148390), (568, 126445), (605, 118712), (710, 101156), (760, 94501), (781, 91960), (836, 85910), (968, 74195), (1045, 68728), (1210, 59356), (1331, 53960), (1349, 53240), (1420, 50578), (1562, 45980), (1672, 42955), (2090, 34364), (2299, 31240), (2420, 29678), (2662, 26980), (2698, 26620), (2840, 25289), (3124, 22990), (3905, 18392), (4180, 17182), (4598, 15620), (4840, 14839), (5324, 13490), (5396, 13310), (6248, 11495), (6655, 10792), (6745, 10648), (7810, 9196), (8360, 8591)]