1440390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^3$

素因数の和:74

約数の個数: 64

約数和(自身を含む): 4170240

約数和(自身を除く): 2729850

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 133, 190, 210, 266, 285, 361, 399, 570, 665, 722, 798, 1083, 1330, 1805, 1995, 2166, 2527, 3610, 3990, 5054, 5415, 6859, 7581, 10830, 12635, 13718, 15162, 20577, 25270, 34295, 37905, 41154, 48013, 68590, 75810, 96026, 102885, 144039, 205770, 240065, 288078, 480130, 720195, 1440390]

約数ペア:

[(1, 1440390), (2, 720195), (3, 480130), (5, 288078), (6, 240065), (7, 205770), (10, 144039), (14, 102885), (15, 96026), (19, 75810), (21, 68590), (30, 48013), (35, 41154), (38, 37905), (42, 34295), (57, 25270), (70, 20577), (95, 15162), (105, 13718), (114, 12635), (133, 10830), (190, 7581), (210, 6859), (266, 5415), (285, 5054), (361, 3990), (399, 3610), (570, 2527), (665, 2166), (722, 1995), (798, 1805), (1083, 1330)]