388889640

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5903}}^1$

素因数の和:5984

約数の個数: 128

約数和(自身を含む): 1317772800

約数和(自身を除く): 928883160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 61, 72, 90, 108, 120, 122, 135, 180, 183, 216, 244, 270, 305, 360, 366, 488, 540, 549, 610, 732, 915, 1080, 1098, 1220, 1464, 1647, 1830, 2196, 2440, 2745, 3294, 3660, 4392, 5490, 5903, 6588, 7320, 8235, 10980, 11806, 13176, 16470, 17709, 21960, 23612, 29515, 32940, 35418, 47224, 53127, 59030, 65880, 70836, 88545, 106254, 118060, 141672, 159381, 177090, 212508, 236120, 265635, 318762, 354180, 360083, 425016, 531270, 637524, 708360, 720166, 796905, 1062540, 1080249, 1275048, 1440332, 1593810, 1800415, 2125080, 2160498, 2880664, 3187620, 3240747, 3600830, 4320996, 5401245, 6375240, 6481494, 7201660, 8641992, 9722241, 10802490, 12962988, 14403320, 16203735, 19444482, 21604980, 25925976, 32407470, 38888964, 43209960, 48611205, 64814940, 77777928, 97222410, 129629880, 194444820, 388889640]

約数ペア:

[(1, 388889640), (2, 194444820), (3, 129629880), (4, 97222410), (5, 77777928), (6, 64814940), (8, 48611205), (9, 43209960), (10, 38888964), (12, 32407470), (15, 25925976), (18, 21604980), (20, 19444482), (24, 16203735), (27, 14403320), (30, 12962988), (36, 10802490), (40, 9722241), (45, 8641992), (54, 7201660), (60, 6481494), (61, 6375240), (72, 5401245), (90, 4320996), (108, 3600830), (120, 3240747), (122, 3187620), (135, 2880664), (180, 2160498), (183, 2125080), (216, 1800415), (244, 1593810), (270, 1440332), (305, 1275048), (360, 1080249), (366, 1062540), (488, 796905), (540, 720166), (549, 708360), (610, 637524), (732, 531270), (915, 425016), (1080, 360083), (1098, 354180), (1220, 318762), (1464, 265635), (1647, 236120), (1830, 212508), (2196, 177090), (2440, 159381), (2745, 141672), (3294, 118060), (3660, 106254), (4392, 88545), (5490, 70836), (5903, 65880), (6588, 59030), (7320, 53127), (8235, 47224), (10980, 35418), (11806, 32940), (13176, 29515), (16470, 23612), (17709, 21960)]