20137293020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{349}}^1\times {\mathrm{397}}^1$

素因数の和:824

約数の個数: 144

約数和(自身を含む): 47109031200

約数和(自身を除く): 26971738180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 169, 172, 215, 260, 338, 349, 397, 430, 559, 676, 698, 794, 845, 860, 1118, 1396, 1588, 1690, 1745, 1985, 2236, 2795, 3380, 3490, 3970, 4537, 5161, 5590, 6980, 7267, 7940, 9074, 10322, 11180, 14534, 15007, 17071, 18148, 20644, 22685, 25805, 29068, 30014, 34142, 36335, 45370, 51610, 58981, 60028, 67093, 68284, 72670, 75035, 85355, 90740, 103220, 117962, 134186, 138553, 145340, 150070, 170710, 195091, 221923, 235924, 268372, 277106, 294905, 300140, 335465, 341420, 390182, 443846, 554212, 589810, 670930, 692765, 780364, 887692, 975455, 1109615, 1179620, 1341860, 1385530, 1801189, 1950910, 2219230, 2536183, 2771060, 2884999, 3602378, 3901820, 4438460, 5072366, 5769998, 5957779, 7204756, 9005945, 10144732, 11539996, 11915558, 12680915, 14424995, 18011890, 23415457, 23831116, 25361830, 28849990, 29788895, 36023780, 46830914, 50723660, 57699980, 59577790, 77451127, 93661828, 117077285, 119155580, 154902254, 234154570, 309804508, 387255635, 468309140, 774511270, 1006864651, 1549022540, 2013729302, 4027458604, 5034323255, 10068646510, 20137293020]

約数ペア:

[(1, 20137293020), (2, 10068646510), (4, 5034323255), (5, 4027458604), (10, 2013729302), (13, 1549022540), (20, 1006864651), (26, 774511270), (43, 468309140), (52, 387255635), (65, 309804508), (86, 234154570), (130, 154902254), (169, 119155580), (172, 117077285), (215, 93661828), (260, 77451127), (338, 59577790), (349, 57699980), (397, 50723660), (430, 46830914), (559, 36023780), (676, 29788895), (698, 28849990), (794, 25361830), (845, 23831116), (860, 23415457), (1118, 18011890), (1396, 14424995), (1588, 12680915), (1690, 11915558), (1745, 11539996), (1985, 10144732), (2236, 9005945), (2795, 7204756), (3380, 5957779), (3490, 5769998), (3970, 5072366), (4537, 4438460), (5161, 3901820), (5590, 3602378), (6980, 2884999), (7267, 2771060), (7940, 2536183), (9074, 2219230), (10322, 1950910), (11180, 1801189), (14534, 1385530), (15007, 1341860), (17071, 1179620), (18148, 1109615), (20644, 975455), (22685, 887692), (25805, 780364), (29068, 692765), (30014, 670930), (34142, 589810), (36335, 554212), (45370, 443846), (51610, 390182), (58981, 341420), (60028, 335465), (67093, 300140), (68284, 294905), (72670, 277106), (75035, 268372), (85355, 235924), (90740, 221923), (103220, 195091), (117962, 170710), (134186, 150070), (138553, 145340)]