28419720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1471}}^1$

素因数の和:1515

約数の個数: 128

約数和(自身を含む): 101744640

約数和(自身を除く): 73324920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 69, 70, 84, 92, 105, 115, 120, 138, 140, 161, 168, 184, 210, 230, 276, 280, 322, 345, 420, 460, 483, 552, 644, 690, 805, 840, 920, 966, 1288, 1380, 1471, 1610, 1932, 2415, 2760, 2942, 3220, 3864, 4413, 4830, 5884, 6440, 7355, 8826, 9660, 10297, 11768, 14710, 17652, 19320, 20594, 22065, 29420, 30891, 33833, 35304, 41188, 44130, 51485, 58840, 61782, 67666, 82376, 88260, 101499, 102970, 123564, 135332, 154455, 169165, 176520, 202998, 205940, 236831, 247128, 270664, 308910, 338330, 405996, 411880, 473662, 507495, 617820, 676660, 710493, 811992, 947324, 1014990, 1184155, 1235640, 1353320, 1420986, 1894648, 2029980, 2368310, 2841972, 3552465, 4059960, 4736620, 5683944, 7104930, 9473240, 14209860, 28419720]

約数ペア:

[(1, 28419720), (2, 14209860), (3, 9473240), (4, 7104930), (5, 5683944), (6, 4736620), (7, 4059960), (8, 3552465), (10, 2841972), (12, 2368310), (14, 2029980), (15, 1894648), (20, 1420986), (21, 1353320), (23, 1235640), (24, 1184155), (28, 1014990), (30, 947324), (35, 811992), (40, 710493), (42, 676660), (46, 617820), (56, 507495), (60, 473662), (69, 411880), (70, 405996), (84, 338330), (92, 308910), (105, 270664), (115, 247128), (120, 236831), (138, 205940), (140, 202998), (161, 176520), (168, 169165), (184, 154455), (210, 135332), (230, 123564), (276, 102970), (280, 101499), (322, 88260), (345, 82376), (420, 67666), (460, 61782), (483, 58840), (552, 51485), (644, 44130), (690, 41188), (805, 35304), (840, 33833), (920, 30891), (966, 29420), (1288, 22065), (1380, 20594), (1471, 19320), (1610, 17652), (1932, 14710), (2415, 11768), (2760, 10297), (2942, 9660), (3220, 8826), (3864, 7355), (4413, 6440), (4830, 5884)]