18753840

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^2$

素因数の和:148

約数の個数: 180

約数和(自身を含む): 73178352

約数和(自身を除く): 54424512

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, 61, 63, 70, 72, 80, 84, 90, 105, 112, 120, 122, 126, 140, 144, 168, 180, 183, 210, 240, 244, 252, 280, 305, 315, 336, 360, 366, 420, 427, 488, 504, 549, 560, 610, 630, 720, 732, 840, 854, 915, 976, 1008, 1098, 1220, 1260, 1281, 1464, 1680, 1708, 1830, 2135, 2196, 2440, 2520, 2562, 2745, 2928, 3416, 3660, 3721, 3843, 4270, 4392, 4880, 5040, 5124, 5490, 6405, 6832, 7320, 7442, 7686, 8540, 8784, 10248, 10980, 11163, 12810, 14640, 14884, 15372, 17080, 18605, 19215, 20496, 21960, 22326, 25620, 26047, 29768, 30744, 33489, 34160, 37210, 38430, 43920, 44652, 51240, 52094, 55815, 59536, 61488, 66978, 74420, 76860, 78141, 89304, 102480, 104188, 111630, 130235, 133956, 148840, 153720, 156282, 167445, 178608, 208376, 223260, 234423, 260470, 267912, 297680, 307440, 312564, 334890, 390705, 416752, 446520, 468846, 520940, 535824, 625128, 669780, 781410, 893040, 937692, 1041880, 1172115, 1250256, 1339560, 1562820, 1875384, 2083760, 2344230, 2679120, 3125640, 3750768, 4688460, 6251280, 9376920, 18753840]

約数ペア:

[(1, 18753840), (2, 9376920), (3, 6251280), (4, 4688460), (5, 3750768), (6, 3125640), (7, 2679120), (8, 2344230), (9, 2083760), (10, 1875384), (12, 1562820), (14, 1339560), (15, 1250256), (16, 1172115), (18, 1041880), (20, 937692), (21, 893040), (24, 781410), (28, 669780), (30, 625128), (35, 535824), (36, 520940), (40, 468846), (42, 446520), (45, 416752), (48, 390705), (56, 334890), (60, 312564), (61, 307440), (63, 297680), (70, 267912), (72, 260470), (80, 234423), (84, 223260), (90, 208376), (105, 178608), (112, 167445), (120, 156282), (122, 153720), (126, 148840), (140, 133956), (144, 130235), (168, 111630), (180, 104188), (183, 102480), (210, 89304), (240, 78141), (244, 76860), (252, 74420), (280, 66978), (305, 61488), (315, 59536), (336, 55815), (360, 52094), (366, 51240), (420, 44652), (427, 43920), (488, 38430), (504, 37210), (549, 34160), (560, 33489), (610, 30744), (630, 29768), (720, 26047), (732, 25620), (840, 22326), (854, 21960), (915, 20496), (976, 19215), (1008, 18605), (1098, 17080), (1220, 15372), (1260, 14884), (1281, 14640), (1464, 12810), (1680, 11163), (1708, 10980), (1830, 10248), (2135, 8784), (2196, 8540), (2440, 7686), (2520, 7442), (2562, 7320), (2745, 6832), (2928, 6405), (3416, 5490), (3660, 5124), (3721, 5040), (3843, 4880), (4270, 4392)]