20212869720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1091}}^1\times {\mathrm{2531}}^1$

素因数の和:3697

約数の個数: 128

約数和(自身を含む): 61713550080

約数和(自身を除く): 41500680360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 366, 488, 610, 732, 915, 1091, 1220, 1464, 1830, 2182, 2440, 2531, 3273, 3660, 4364, 5062, 5455, 6546, 7320, 7593, 8728, 10124, 10910, 12655, 13092, 15186, 16365, 20248, 21820, 25310, 26184, 30372, 32730, 37965, 43640, 50620, 60744, 65460, 66551, 75930, 101240, 130920, 133102, 151860, 154391, 199653, 266204, 303720, 308782, 332755, 399306, 463173, 532408, 617564, 665510, 771955, 798612, 926346, 998265, 1235128, 1331020, 1543910, 1597224, 1852692, 1996530, 2315865, 2662040, 2761321, 3087820, 3705384, 3993060, 4631730, 5522642, 6175640, 7986120, 8283963, 9263460, 11045284, 13806605, 16567926, 18526920, 22090568, 27613210, 33135852, 41419815, 55226420, 66271704, 82839630, 110452840, 165679260, 168440581, 331358520, 336881162, 505321743, 673762324, 842202905, 1010643486, 1347524648, 1684405810, 2021286972, 2526608715, 3368811620, 4042573944, 5053217430, 6737623240, 10106434860, 20212869720]

約数ペア:

[(1, 20212869720), (2, 10106434860), (3, 6737623240), (4, 5053217430), (5, 4042573944), (6, 3368811620), (8, 2526608715), (10, 2021286972), (12, 1684405810), (15, 1347524648), (20, 1010643486), (24, 842202905), (30, 673762324), (40, 505321743), (60, 336881162), (61, 331358520), (120, 168440581), (122, 165679260), (183, 110452840), (244, 82839630), (305, 66271704), (366, 55226420), (488, 41419815), (610, 33135852), (732, 27613210), (915, 22090568), (1091, 18526920), (1220, 16567926), (1464, 13806605), (1830, 11045284), (2182, 9263460), (2440, 8283963), (2531, 7986120), (3273, 6175640), (3660, 5522642), (4364, 4631730), (5062, 3993060), (5455, 3705384), (6546, 3087820), (7320, 2761321), (7593, 2662040), (8728, 2315865), (10124, 1996530), (10910, 1852692), (12655, 1597224), (13092, 1543910), (15186, 1331020), (16365, 1235128), (20248, 998265), (21820, 926346), (25310, 798612), (26184, 771955), (30372, 665510), (32730, 617564), (37965, 532408), (43640, 463173), (50620, 399306), (60744, 332755), (65460, 308782), (66551, 303720), (75930, 266204), (101240, 199653), (130920, 154391), (133102, 151860)]