19909380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:309

約数の個数: 96

約数和(自身を含む): 59875200

約数和(自身を除く): 39965820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 131, 149, 170, 204, 255, 262, 298, 340, 393, 447, 510, 524, 596, 655, 745, 786, 894, 1020, 1310, 1490, 1572, 1788, 1965, 2227, 2235, 2533, 2620, 2980, 3930, 4454, 4470, 5066, 6681, 7599, 7860, 8908, 8940, 10132, 11135, 12665, 13362, 15198, 19519, 22270, 25330, 26724, 30396, 33405, 37995, 39038, 44540, 50660, 58557, 66810, 75990, 78076, 97595, 117114, 133620, 151980, 195190, 234228, 292785, 331823, 390380, 585570, 663646, 995469, 1171140, 1327292, 1659115, 1990938, 3318230, 3981876, 4977345, 6636460, 9954690, 19909380]

約数ペア:

[(1, 19909380), (2, 9954690), (3, 6636460), (4, 4977345), (5, 3981876), (6, 3318230), (10, 1990938), (12, 1659115), (15, 1327292), (17, 1171140), (20, 995469), (30, 663646), (34, 585570), (51, 390380), (60, 331823), (68, 292785), (85, 234228), (102, 195190), (131, 151980), (149, 133620), (170, 117114), (204, 97595), (255, 78076), (262, 75990), (298, 66810), (340, 58557), (393, 50660), (447, 44540), (510, 39038), (524, 37995), (596, 33405), (655, 30396), (745, 26724), (786, 25330), (894, 22270), (1020, 19519), (1310, 15198), (1490, 13362), (1572, 12665), (1788, 11135), (1965, 10132), (2227, 8940), (2235, 8908), (2533, 7860), (2620, 7599), (2980, 6681), (3930, 5066), (4454, 4470)]