28085820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{233}}^1$

素因数の和:300

約数の個数: 144

約数和(自身を含む): 94112928

約数和(自身を除く): 66027108

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 41, 42, 49, 60, 70, 82, 84, 98, 105, 123, 140, 147, 164, 196, 205, 210, 233, 245, 246, 287, 294, 410, 420, 466, 490, 492, 574, 588, 615, 699, 735, 820, 861, 932, 980, 1148, 1165, 1230, 1398, 1435, 1470, 1631, 1722, 2009, 2330, 2460, 2796, 2870, 2940, 3262, 3444, 3495, 4018, 4305, 4660, 4893, 5740, 6027, 6524, 6990, 8036, 8155, 8610, 9553, 9786, 10045, 11417, 12054, 13980, 16310, 17220, 19106, 19572, 20090, 22834, 24108, 24465, 28659, 30135, 32620, 34251, 38212, 40180, 45668, 47765, 48930, 57085, 57318, 60270, 66871, 68502, 95530, 97860, 114170, 114636, 120540, 133742, 137004, 143295, 171255, 191060, 200613, 228340, 267484, 286590, 334355, 342510, 401226, 468097, 573180, 668710, 685020, 802452, 936194, 1003065, 1337420, 1404291, 1872388, 2006130, 2340485, 2808582, 4012260, 4680970, 5617164, 7021455, 9361940, 14042910, 28085820]

約数ペア:

[(1, 28085820), (2, 14042910), (3, 9361940), (4, 7021455), (5, 5617164), (6, 4680970), (7, 4012260), (10, 2808582), (12, 2340485), (14, 2006130), (15, 1872388), (20, 1404291), (21, 1337420), (28, 1003065), (30, 936194), (35, 802452), (41, 685020), (42, 668710), (49, 573180), (60, 468097), (70, 401226), (82, 342510), (84, 334355), (98, 286590), (105, 267484), (123, 228340), (140, 200613), (147, 191060), (164, 171255), (196, 143295), (205, 137004), (210, 133742), (233, 120540), (245, 114636), (246, 114170), (287, 97860), (294, 95530), (410, 68502), (420, 66871), (466, 60270), (490, 57318), (492, 57085), (574, 48930), (588, 47765), (615, 45668), (699, 40180), (735, 38212), (820, 34251), (861, 32620), (932, 30135), (980, 28659), (1148, 24465), (1165, 24108), (1230, 22834), (1398, 20090), (1435, 19572), (1470, 19106), (1631, 17220), (1722, 16310), (2009, 13980), (2330, 12054), (2460, 11417), (2796, 10045), (2870, 9786), (2940, 9553), (3262, 8610), (3444, 8155), (3495, 8036), (4018, 6990), (4305, 6524), (4660, 6027), (4893, 5740)]