30142980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{509}}^1$

素因数の和:578

約数の個数: 144

約数和(自身を含む): 106928640

約数和(自身を除く): 76785660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 47, 60, 63, 70, 84, 90, 94, 105, 126, 140, 141, 180, 188, 210, 235, 252, 282, 315, 329, 420, 423, 470, 509, 564, 630, 658, 705, 846, 940, 987, 1018, 1260, 1316, 1410, 1527, 1645, 1692, 1974, 2036, 2115, 2545, 2820, 2961, 3054, 3290, 3563, 3948, 4230, 4581, 4935, 5090, 5922, 6108, 6580, 7126, 7635, 8460, 9162, 9870, 10180, 10689, 11844, 14252, 14805, 15270, 17815, 18324, 19740, 21378, 22905, 23923, 29610, 30540, 32067, 35630, 42756, 45810, 47846, 53445, 59220, 64134, 71260, 71769, 91620, 95692, 106890, 119615, 128268, 143538, 160335, 167461, 213780, 215307, 239230, 287076, 320670, 334922, 358845, 430614, 478460, 502383, 641340, 669844, 717690, 837305, 861228, 1004766, 1076535, 1435380, 1507149, 1674610, 2009532, 2153070, 2511915, 3014298, 3349220, 4306140, 5023830, 6028596, 7535745, 10047660, 15071490, 30142980]

約数ペア:

[(1, 30142980), (2, 15071490), (3, 10047660), (4, 7535745), (5, 6028596), (6, 5023830), (7, 4306140), (9, 3349220), (10, 3014298), (12, 2511915), (14, 2153070), (15, 2009532), (18, 1674610), (20, 1507149), (21, 1435380), (28, 1076535), (30, 1004766), (35, 861228), (36, 837305), (42, 717690), (45, 669844), (47, 641340), (60, 502383), (63, 478460), (70, 430614), (84, 358845), (90, 334922), (94, 320670), (105, 287076), (126, 239230), (140, 215307), (141, 213780), (180, 167461), (188, 160335), (210, 143538), (235, 128268), (252, 119615), (282, 106890), (315, 95692), (329, 91620), (420, 71769), (423, 71260), (470, 64134), (509, 59220), (564, 53445), (630, 47846), (658, 45810), (705, 42756), (846, 35630), (940, 32067), (987, 30540), (1018, 29610), (1260, 23923), (1316, 22905), (1410, 21378), (1527, 19740), (1645, 18324), (1692, 17815), (1974, 15270), (2036, 14805), (2115, 14252), (2545, 11844), (2820, 10689), (2961, 10180), (3054, 9870), (3290, 9162), (3563, 8460), (3948, 7635), (4230, 7126), (4581, 6580), (4935, 6108), (5090, 5922)]