20301804

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{443}}^1$

素因数の和:539

約数の個数: 72

約数和(自身を含む): 54949440

約数和(自身を除く): 34647636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 67, 76, 114, 134, 171, 201, 228, 268, 342, 402, 443, 603, 684, 804, 886, 1206, 1273, 1329, 1772, 2412, 2546, 2658, 3819, 3987, 5092, 5316, 7638, 7974, 8417, 11457, 15276, 15948, 16834, 22914, 25251, 29681, 33668, 45828, 50502, 59362, 75753, 89043, 101004, 118724, 151506, 178086, 267129, 303012, 356172, 534258, 563939, 1068516, 1127878, 1691817, 2255756, 3383634, 5075451, 6767268, 10150902, 20301804]

約数ペア:

[(1, 20301804), (2, 10150902), (3, 6767268), (4, 5075451), (6, 3383634), (9, 2255756), (12, 1691817), (18, 1127878), (19, 1068516), (36, 563939), (38, 534258), (57, 356172), (67, 303012), (76, 267129), (114, 178086), (134, 151506), (171, 118724), (201, 101004), (228, 89043), (268, 75753), (342, 59362), (402, 50502), (443, 45828), (603, 33668), (684, 29681), (804, 25251), (886, 22914), (1206, 16834), (1273, 15948), (1329, 15276), (1772, 11457), (2412, 8417), (2546, 7974), (2658, 7638), (3819, 5316), (3987, 5092)]