19862220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{131}}^1$

素因数の和:188

約数の個数: 144

約数和(自身を含む): 67592448

約数和(自身を除く): 47730228

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 131, 133, 140, 190, 210, 228, 262, 266, 285, 361, 380, 393, 399, 420, 524, 532, 570, 655, 665, 722, 786, 798, 917, 1083, 1140, 1310, 1330, 1444, 1572, 1596, 1805, 1834, 1965, 1995, 2166, 2489, 2527, 2620, 2660, 2751, 3610, 3668, 3930, 3990, 4332, 4585, 4978, 5054, 5415, 5502, 7220, 7467, 7581, 7860, 7980, 9170, 9956, 10108, 10830, 11004, 12445, 12635, 13755, 14934, 15162, 17423, 18340, 21660, 24890, 25270, 27510, 29868, 30324, 34846, 37335, 37905, 47291, 49780, 50540, 52269, 55020, 69692, 74670, 75810, 87115, 94582, 104538, 141873, 149340, 151620, 174230, 189164, 209076, 236455, 261345, 283746, 331037, 348460, 472910, 522690, 567492, 662074, 709365, 945820, 993111, 1045380, 1324148, 1418730, 1655185, 1986222, 2837460, 3310370, 3972444, 4965555, 6620740, 9931110, 19862220]

約数ペア:

[(1, 19862220), (2, 9931110), (3, 6620740), (4, 4965555), (5, 3972444), (6, 3310370), (7, 2837460), (10, 1986222), (12, 1655185), (14, 1418730), (15, 1324148), (19, 1045380), (20, 993111), (21, 945820), (28, 709365), (30, 662074), (35, 567492), (38, 522690), (42, 472910), (57, 348460), (60, 331037), (70, 283746), (76, 261345), (84, 236455), (95, 209076), (105, 189164), (114, 174230), (131, 151620), (133, 149340), (140, 141873), (190, 104538), (210, 94582), (228, 87115), (262, 75810), (266, 74670), (285, 69692), (361, 55020), (380, 52269), (393, 50540), (399, 49780), (420, 47291), (524, 37905), (532, 37335), (570, 34846), (655, 30324), (665, 29868), (722, 27510), (786, 25270), (798, 24890), (917, 21660), (1083, 18340), (1140, 17423), (1310, 15162), (1330, 14934), (1444, 13755), (1572, 12635), (1596, 12445), (1805, 11004), (1834, 10830), (1965, 10108), (1995, 9956), (2166, 9170), (2489, 7980), (2527, 7860), (2620, 7581), (2660, 7467), (2751, 7220), (3610, 5502), (3668, 5415), (3930, 5054), (3990, 4978), (4332, 4585)]