220281040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12689}}^1$

素因数の和:12740

約数の個数: 80

約数和(自身を含む): 604247040

約数和(自身を除く): 383966000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 8680, 12689, 17360, 25378, 50756, 63445, 88823, 101512, 126890, 177646, 203024, 253780, 355292, 393359, 444115, 507560, 710584, 786718, 888230, 1015120, 1421168, 1573436, 1776460, 1966795, 2753513, 3146872, 3552920, 3933590, 5507026, 6293744, 7105840, 7867180, 11014052, 13767565, 15734360, 22028104, 27535130, 31468720, 44056208, 55070260, 110140520, 220281040]

約数ペア:

[(1, 220281040), (2, 110140520), (4, 55070260), (5, 44056208), (7, 31468720), (8, 27535130), (10, 22028104), (14, 15734360), (16, 13767565), (20, 11014052), (28, 7867180), (31, 7105840), (35, 6293744), (40, 5507026), (56, 3933590), (62, 3552920), (70, 3146872), (80, 2753513), (112, 1966795), (124, 1776460), (140, 1573436), (155, 1421168), (217, 1015120), (248, 888230), (280, 786718), (310, 710584), (434, 507560), (496, 444115), (560, 393359), (620, 355292), (868, 253780), (1085, 203024), (1240, 177646), (1736, 126890), (2170, 101512), (2480, 88823), (3472, 63445), (4340, 50756), (8680, 25378), (12689, 17360)]