28139580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{971}}^1$

素因数の和:1016

約数の個数: 144

約数和(自身を含む): 101896704

約数和(自身を除く): 73757124

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 45, 46, 60, 63, 69, 70, 84, 90, 92, 105, 115, 126, 138, 140, 161, 180, 207, 210, 230, 252, 276, 315, 322, 345, 414, 420, 460, 483, 630, 644, 690, 805, 828, 966, 971, 1035, 1260, 1380, 1449, 1610, 1932, 1942, 2070, 2415, 2898, 2913, 3220, 3884, 4140, 4830, 4855, 5796, 5826, 6797, 7245, 8739, 9660, 9710, 11652, 13594, 14490, 14565, 17478, 19420, 20391, 22333, 27188, 28980, 29130, 33985, 34956, 40782, 43695, 44666, 58260, 61173, 66999, 67970, 81564, 87390, 89332, 101955, 111665, 122346, 133998, 135940, 156331, 174780, 200997, 203910, 223330, 244692, 267996, 305865, 312662, 334995, 401994, 407820, 446660, 468993, 611730, 625324, 669990, 781655, 803988, 937986, 1004985, 1223460, 1339980, 1406979, 1563310, 1875972, 2009970, 2344965, 2813958, 3126620, 4019940, 4689930, 5627916, 7034895, 9379860, 14069790, 28139580]

約数ペア:

[(1, 28139580), (2, 14069790), (3, 9379860), (4, 7034895), (5, 5627916), (6, 4689930), (7, 4019940), (9, 3126620), (10, 2813958), (12, 2344965), (14, 2009970), (15, 1875972), (18, 1563310), (20, 1406979), (21, 1339980), (23, 1223460), (28, 1004985), (30, 937986), (35, 803988), (36, 781655), (42, 669990), (45, 625324), (46, 611730), (60, 468993), (63, 446660), (69, 407820), (70, 401994), (84, 334995), (90, 312662), (92, 305865), (105, 267996), (115, 244692), (126, 223330), (138, 203910), (140, 200997), (161, 174780), (180, 156331), (207, 135940), (210, 133998), (230, 122346), (252, 111665), (276, 101955), (315, 89332), (322, 87390), (345, 81564), (414, 67970), (420, 66999), (460, 61173), (483, 58260), (630, 44666), (644, 43695), (690, 40782), (805, 34956), (828, 33985), (966, 29130), (971, 28980), (1035, 27188), (1260, 22333), (1380, 20391), (1449, 19420), (1610, 17478), (1932, 14565), (1942, 14490), (2070, 13594), (2415, 11652), (2898, 9710), (2913, 9660), (3220, 8739), (3884, 7245), (4140, 6797), (4830, 5826), (4855, 5796)]