20156989140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1367}}^1\times {\mathrm{81919}}^1$

素因数の和:83301

約数の個数: 72

約数和(自身を含む): 61188341760

約数和(自身を除く): 41031352620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1367, 2734, 4101, 5468, 6835, 8202, 12303, 13670, 16404, 20505, 24606, 27340, 41010, 49212, 61515, 81919, 82020, 123030, 163838, 245757, 246060, 327676, 409595, 491514, 737271, 819190, 983028, 1228785, 1474542, 1638380, 2457570, 2949084, 3686355, 4915140, 7372710, 14745420, 111983273, 223966546, 335949819, 447933092, 559916365, 671899638, 1007849457, 1119832730, 1343799276, 1679749095, 2015698914, 2239665460, 3359498190, 4031397828, 5039247285, 6718996380, 10078494570, 20156989140]

約数ペア:

[(1, 20156989140), (2, 10078494570), (3, 6718996380), (4, 5039247285), (5, 4031397828), (6, 3359498190), (9, 2239665460), (10, 2015698914), (12, 1679749095), (15, 1343799276), (18, 1119832730), (20, 1007849457), (30, 671899638), (36, 559916365), (45, 447933092), (60, 335949819), (90, 223966546), (180, 111983273), (1367, 14745420), (2734, 7372710), (4101, 4915140), (5468, 3686355), (6835, 2949084), (8202, 2457570), (12303, 1638380), (13670, 1474542), (16404, 1228785), (20505, 983028), (24606, 819190), (27340, 737271), (41010, 491514), (49212, 409595), (61515, 327676), (81919, 246060), (82020, 245757), (123030, 163838)]