638256780

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{168851}}^1$

素因数の和:168876

約数の個数: 96

約数和(自身を含む): 2269370880

約数和(自身を除く): 1631114100

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 168851, 337702, 506553, 675404, 844255, 1013106, 1181957, 1519659, 1688510, 2026212, 2363914, 2532765, 3039318, 3377020, 3545871, 4558977, 4727828, 5065530, 5909785, 6078636, 7091742, 7598295, 9117954, 10131060, 10637613, 11819570, 14183484, 15196590, 17729355, 18235908, 21275226, 22794885, 23639140, 30393180, 31912839, 35458710, 42550452, 45589770, 53188065, 63825678, 70917420, 91179540, 106376130, 127651356, 159564195, 212752260, 319128390, 638256780]

約数ペア:

[(1, 638256780), (2, 319128390), (3, 212752260), (4, 159564195), (5, 127651356), (6, 106376130), (7, 91179540), (9, 70917420), (10, 63825678), (12, 53188065), (14, 45589770), (15, 42550452), (18, 35458710), (20, 31912839), (21, 30393180), (27, 23639140), (28, 22794885), (30, 21275226), (35, 18235908), (36, 17729355), (42, 15196590), (45, 14183484), (54, 11819570), (60, 10637613), (63, 10131060), (70, 9117954), (84, 7598295), (90, 7091742), (105, 6078636), (108, 5909785), (126, 5065530), (135, 4727828), (140, 4558977), (180, 3545871), (189, 3377020), (210, 3039318), (252, 2532765), (270, 2363914), (315, 2026212), (378, 1688510), (420, 1519659), (540, 1181957), (630, 1013106), (756, 844255), (945, 675404), (1260, 506553), (1890, 337702), (3780, 168851)]