20494764

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1$

素因数の和:399

約数の個数: 72

約数和(自身を含む): 54578160

約数和(自身を除く): 34083396

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 67, 87, 116, 134, 174, 201, 261, 268, 293, 348, 402, 522, 586, 603, 804, 879, 1044, 1172, 1206, 1758, 1943, 2412, 2637, 3516, 3886, 5274, 5829, 7772, 8497, 10548, 11658, 16994, 17487, 19631, 23316, 25491, 33988, 34974, 39262, 50982, 58893, 69948, 76473, 78524, 101964, 117786, 152946, 176679, 235572, 305892, 353358, 569299, 706716, 1138598, 1707897, 2277196, 3415794, 5123691, 6831588, 10247382, 20494764]

約数ペア:

[(1, 20494764), (2, 10247382), (3, 6831588), (4, 5123691), (6, 3415794), (9, 2277196), (12, 1707897), (18, 1138598), (29, 706716), (36, 569299), (58, 353358), (67, 305892), (87, 235572), (116, 176679), (134, 152946), (174, 117786), (201, 101964), (261, 78524), (268, 76473), (293, 69948), (348, 58893), (402, 50982), (522, 39262), (586, 34974), (603, 33988), (804, 25491), (879, 23316), (1044, 19631), (1172, 17487), (1206, 16994), (1758, 11658), (1943, 10548), (2412, 8497), (2637, 7772), (3516, 5829), (3886, 5274)]