18784080

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{3727}}^1$

素因数の和:3753

約数の個数: 120

約数和(自身を含む): 72114432

約数和(自身を除く): 53330352

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 3727, 5040, 7454, 11181, 14908, 18635, 22362, 26089, 29816, 33543, 37270, 44724, 52178, 55905, 59632, 67086, 74540, 78267, 89448, 104356, 111810, 130445, 134172, 149080, 156534, 167715, 178896, 208712, 223620, 234801, 260890, 268344, 298160, 313068, 335430, 391335, 417424, 447240, 469602, 521780, 536688, 626136, 670860, 782670, 894480, 939204, 1043560, 1174005, 1252272, 1341720, 1565340, 1878408, 2087120, 2348010, 2683440, 3130680, 3756816, 4696020, 6261360, 9392040, 18784080]

約数ペア:

[(1, 18784080), (2, 9392040), (3, 6261360), (4, 4696020), (5, 3756816), (6, 3130680), (7, 2683440), (8, 2348010), (9, 2087120), (10, 1878408), (12, 1565340), (14, 1341720), (15, 1252272), (16, 1174005), (18, 1043560), (20, 939204), (21, 894480), (24, 782670), (28, 670860), (30, 626136), (35, 536688), (36, 521780), (40, 469602), (42, 447240), (45, 417424), (48, 391335), (56, 335430), (60, 313068), (63, 298160), (70, 268344), (72, 260890), (80, 234801), (84, 223620), (90, 208712), (105, 178896), (112, 167715), (120, 156534), (126, 149080), (140, 134172), (144, 130445), (168, 111810), (180, 104356), (210, 89448), (240, 78267), (252, 74540), (280, 67086), (315, 59632), (336, 55905), (360, 52178), (420, 44724), (504, 37270), (560, 33543), (630, 29816), (720, 26089), (840, 22362), (1008, 18635), (1260, 14908), (1680, 11181), (2520, 7454), (3727, 5040)]