19558980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1$

素因数の和:103

約数の個数: 216

約数和(自身を含む): 73225152

約数和(自身を除く): 53666172

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 43, 45, 57, 60, 63, 70, 76, 84, 86, 90, 95, 105, 114, 126, 129, 133, 140, 171, 172, 180, 190, 210, 215, 228, 252, 258, 266, 285, 301, 315, 342, 361, 380, 387, 399, 420, 430, 516, 532, 570, 602, 630, 645, 665, 684, 722, 774, 798, 817, 855, 860, 903, 1083, 1140, 1197, 1204, 1260, 1290, 1330, 1444, 1505, 1548, 1596, 1634, 1710, 1805, 1806, 1935, 1995, 2166, 2394, 2451, 2527, 2580, 2660, 2709, 3010, 3249, 3268, 3420, 3610, 3612, 3870, 3990, 4085, 4332, 4515, 4788, 4902, 5054, 5415, 5418, 5719, 5985, 6020, 6498, 7220, 7353, 7581, 7740, 7980, 8170, 9030, 9804, 10108, 10830, 10836, 11438, 11970, 12255, 12635, 12996, 13545, 14706, 15162, 15523, 16245, 16340, 17157, 18060, 21660, 22743, 22876, 23940, 24510, 25270, 27090, 28595, 29412, 30324, 31046, 32490, 34314, 36765, 37905, 45486, 46569, 49020, 50540, 51471, 54180, 57190, 62092, 64980, 68628, 73530, 75810, 77615, 85785, 90972, 93138, 102942, 108661, 113715, 114380, 139707, 147060, 151620, 155230, 171570, 186276, 205884, 217322, 227430, 232845, 257355, 279414, 310460, 325983, 343140, 434644, 454860, 465690, 514710, 543305, 558828, 651966, 698535, 931380, 977949, 1029420, 1086610, 1303932, 1397070, 1629915, 1955898, 2173220, 2794140, 3259830, 3911796, 4889745, 6519660, 9779490, 19558980]

約数ペア:

[(1, 19558980), (2, 9779490), (3, 6519660), (4, 4889745), (5, 3911796), (6, 3259830), (7, 2794140), (9, 2173220), (10, 1955898), (12, 1629915), (14, 1397070), (15, 1303932), (18, 1086610), (19, 1029420), (20, 977949), (21, 931380), (28, 698535), (30, 651966), (35, 558828), (36, 543305), (38, 514710), (42, 465690), (43, 454860), (45, 434644), (57, 343140), (60, 325983), (63, 310460), (70, 279414), (76, 257355), (84, 232845), (86, 227430), (90, 217322), (95, 205884), (105, 186276), (114, 171570), (126, 155230), (129, 151620), (133, 147060), (140, 139707), (171, 114380), (172, 113715), (180, 108661), (190, 102942), (210, 93138), (215, 90972), (228, 85785), (252, 77615), (258, 75810), (266, 73530), (285, 68628), (301, 64980), (315, 62092), (342, 57190), (361, 54180), (380, 51471), (387, 50540), (399, 49020), (420, 46569), (430, 45486), (516, 37905), (532, 36765), (570, 34314), (602, 32490), (630, 31046), (645, 30324), (665, 29412), (684, 28595), (722, 27090), (774, 25270), (798, 24510), (817, 23940), (855, 22876), (860, 22743), (903, 21660), (1083, 18060), (1140, 17157), (1197, 16340), (1204, 16245), (1260, 15523), (1290, 15162), (1330, 14706), (1444, 13545), (1505, 12996), (1548, 12635), (1596, 12255), (1634, 11970), (1710, 11438), (1805, 10836), (1806, 10830), (1935, 10108), (1995, 9804), (2166, 9030), (2394, 8170), (2451, 7980), (2527, 7740), (2580, 7581), (2660, 7353), (2709, 7220), (3010, 6498), (3249, 6020), (3268, 5985), (3420, 5719), (3610, 5418), (3612, 5415), (3870, 5054), (3990, 4902), (4085, 4788), (4332, 4515)]