666453996

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:772

約数の個数: 144

約数和(自身を含む): 1902071808

約数和(自身を除く): 1235617812

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 71, 78, 93, 117, 124, 142, 156, 186, 213, 234, 279, 284, 372, 403, 426, 468, 558, 639, 647, 806, 852, 923, 1116, 1209, 1278, 1294, 1612, 1846, 1941, 2201, 2418, 2556, 2588, 2769, 3627, 3692, 3882, 4402, 4836, 5538, 5823, 6603, 7254, 7764, 8307, 8411, 8804, 11076, 11646, 13206, 14508, 16614, 16822, 19809, 20057, 23292, 25233, 26412, 28613, 33228, 33644, 39618, 40114, 45937, 50466, 57226, 60171, 75699, 79236, 80228, 85839, 91874, 100932, 114452, 120342, 137811, 151398, 171678, 180513, 183748, 240684, 257517, 260741, 275622, 302796, 343356, 361026, 413433, 515034, 521482, 551244, 597181, 722052, 782223, 826866, 1030068, 1042964, 1194362, 1424047, 1564446, 1653732, 1791543, 2346669, 2388724, 2848094, 3128892, 3583086, 4272141, 4693338, 5374629, 5696188, 7166172, 8544282, 9386676, 10749258, 12816423, 17088564, 18512611, 21498516, 25632846, 37025222, 51265692, 55537833, 74050444, 111075666, 166613499, 222151332, 333226998, 666453996]

約数ペア:

[(1, 666453996), (2, 333226998), (3, 222151332), (4, 166613499), (6, 111075666), (9, 74050444), (12, 55537833), (13, 51265692), (18, 37025222), (26, 25632846), (31, 21498516), (36, 18512611), (39, 17088564), (52, 12816423), (62, 10749258), (71, 9386676), (78, 8544282), (93, 7166172), (117, 5696188), (124, 5374629), (142, 4693338), (156, 4272141), (186, 3583086), (213, 3128892), (234, 2848094), (279, 2388724), (284, 2346669), (372, 1791543), (403, 1653732), (426, 1564446), (468, 1424047), (558, 1194362), (639, 1042964), (647, 1030068), (806, 826866), (852, 782223), (923, 722052), (1116, 597181), (1209, 551244), (1278, 521482), (1294, 515034), (1612, 413433), (1846, 361026), (1941, 343356), (2201, 302796), (2418, 275622), (2556, 260741), (2588, 257517), (2769, 240684), (3627, 183748), (3692, 180513), (3882, 171678), (4402, 151398), (4836, 137811), (5538, 120342), (5823, 114452), (6603, 100932), (7254, 91874), (7764, 85839), (8307, 80228), (8411, 79236), (8804, 75699), (11076, 60171), (11646, 57226), (13206, 50466), (14508, 45937), (16614, 40114), (16822, 39618), (19809, 33644), (20057, 33228), (23292, 28613), (25233, 26412)]