28986588

素因数分解:

$2^2\times 3^2\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:291

約数の個数: 72

約数和(自身を含む): 75675600

約数和(自身を除く): 46689012

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 83, 89, 109, 166, 178, 218, 249, 267, 327, 332, 356, 436, 498, 534, 654, 747, 801, 981, 996, 1068, 1308, 1494, 1602, 1962, 2988, 3204, 3924, 7387, 9047, 9701, 14774, 18094, 19402, 22161, 27141, 29103, 29548, 36188, 38804, 44322, 54282, 58206, 66483, 81423, 87309, 88644, 108564, 116412, 132966, 162846, 174618, 265932, 325692, 349236, 805183, 1610366, 2415549, 3220732, 4831098, 7246647, 9662196, 14493294, 28986588]

約数ペア:

[(1, 28986588), (2, 14493294), (3, 9662196), (4, 7246647), (6, 4831098), (9, 3220732), (12, 2415549), (18, 1610366), (36, 805183), (83, 349236), (89, 325692), (109, 265932), (166, 174618), (178, 162846), (218, 132966), (249, 116412), (267, 108564), (327, 88644), (332, 87309), (356, 81423), (436, 66483), (498, 58206), (534, 54282), (654, 44322), (747, 38804), (801, 36188), (981, 29548), (996, 29103), (1068, 27141), (1308, 22161), (1494, 19402), (1602, 18094), (1962, 14774), (2988, 9701), (3204, 9047), (3924, 7387)]