1638639720

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13669}}^1$

素因数の和:13729

約数の個数: 160

約数和(自身を含む): 5656919400

約数和(自身を除く): 4018279680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 37, 40, 45, 54, 60, 72, 74, 81, 90, 108, 111, 120, 135, 148, 162, 180, 185, 216, 222, 270, 296, 324, 333, 360, 370, 405, 444, 540, 555, 648, 666, 740, 810, 888, 999, 1080, 1110, 1332, 1480, 1620, 1665, 1998, 2220, 2664, 2997, 3240, 3330, 3996, 4440, 4995, 5994, 6660, 7992, 9990, 11988, 13320, 13669, 14985, 19980, 23976, 27338, 29970, 39960, 41007, 54676, 59940, 68345, 82014, 109352, 119880, 123021, 136690, 164028, 205035, 246042, 273380, 328056, 369063, 410070, 492084, 505753, 546760, 615105, 738126, 820140, 984168, 1011506, 1107189, 1230210, 1476252, 1517259, 1640280, 1845315, 2023012, 2214378, 2460420, 2528765, 2952504, 3034518, 3690630, 4046024, 4428756, 4551777, 4920840, 5057530, 5535945, 6069036, 7381260, 7586295, 8857512, 9103554, 10115060, 11071890, 12138072, 13655331, 14762520, 15172590, 18207108, 20230120, 22143780, 22758885, 27310662, 30345180, 36414216, 40965993, 44287560, 45517770, 54621324, 60690360, 68276655, 81931986, 91035540, 109242648, 136553310, 163863972, 182071080, 204829965, 273106620, 327727944, 409659930, 546213240, 819319860, 1638639720]

約数ペア:

[(1, 1638639720), (2, 819319860), (3, 546213240), (4, 409659930), (5, 327727944), (6, 273106620), (8, 204829965), (9, 182071080), (10, 163863972), (12, 136553310), (15, 109242648), (18, 91035540), (20, 81931986), (24, 68276655), (27, 60690360), (30, 54621324), (36, 45517770), (37, 44287560), (40, 40965993), (45, 36414216), (54, 30345180), (60, 27310662), (72, 22758885), (74, 22143780), (81, 20230120), (90, 18207108), (108, 15172590), (111, 14762520), (120, 13655331), (135, 12138072), (148, 11071890), (162, 10115060), (180, 9103554), (185, 8857512), (216, 7586295), (222, 7381260), (270, 6069036), (296, 5535945), (324, 5057530), (333, 4920840), (360, 4551777), (370, 4428756), (405, 4046024), (444, 3690630), (540, 3034518), (555, 2952504), (648, 2528765), (666, 2460420), (740, 2214378), (810, 2023012), (888, 1845315), (999, 1640280), (1080, 1517259), (1110, 1476252), (1332, 1230210), (1480, 1107189), (1620, 1011506), (1665, 984168), (1998, 820140), (2220, 738126), (2664, 615105), (2997, 546760), (3240, 505753), (3330, 492084), (3996, 410070), (4440, 369063), (4995, 328056), (5994, 273380), (6660, 246042), (7992, 205035), (9990, 164028), (11988, 136690), (13320, 123021), (13669, 119880), (14985, 109352), (19980, 82014), (23976, 68345), (27338, 59940), (29970, 54676), (39960, 41007)]