242820

素因数分解:

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

素因数の和:105

約数の個数: 72

約数和(自身を含む): 786240

約数和(自身を除く): 543420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 71, 76, 90, 95, 114, 142, 171, 180, 190, 213, 228, 284, 285, 342, 355, 380, 426, 570, 639, 684, 710, 852, 855, 1065, 1140, 1278, 1349, 1420, 1710, 2130, 2556, 2698, 3195, 3420, 4047, 4260, 5396, 6390, 6745, 8094, 12141, 12780, 13490, 16188, 20235, 24282, 26980, 40470, 48564, 60705, 80940, 121410, 242820]

約数ペア:

[(1, 242820), (2, 121410), (3, 80940), (4, 60705), (5, 48564), (6, 40470), (9, 26980), (10, 24282), (12, 20235), (15, 16188), (18, 13490), (19, 12780), (20, 12141), (30, 8094), (36, 6745), (38, 6390), (45, 5396), (57, 4260), (60, 4047), (71, 3420), (76, 3195), (90, 2698), (95, 2556), (114, 2130), (142, 1710), (171, 1420), (180, 1349), (190, 1278), (213, 1140), (228, 1065), (284, 855), (285, 852), (342, 710), (355, 684), (380, 639), (426, 570)]