19012980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:278

約数の個数: 144

約数和(自身を含む): 64350720

約数和(自身を除く): 45337740

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 49, 58, 60, 70, 84, 87, 98, 105, 116, 140, 145, 147, 174, 196, 203, 210, 223, 245, 290, 294, 348, 406, 420, 435, 446, 490, 580, 588, 609, 669, 735, 812, 870, 892, 980, 1015, 1115, 1218, 1338, 1421, 1470, 1561, 1740, 2030, 2230, 2436, 2676, 2842, 2940, 3045, 3122, 3345, 4060, 4263, 4460, 4683, 5684, 6090, 6244, 6467, 6690, 7105, 7805, 8526, 9366, 10927, 12180, 12934, 13380, 14210, 15610, 17052, 18732, 19401, 21315, 21854, 23415, 25868, 28420, 31220, 32335, 32781, 38802, 42630, 43708, 45269, 46830, 54635, 64670, 65562, 77604, 85260, 90538, 93660, 97005, 109270, 129340, 131124, 135807, 163905, 181076, 194010, 218540, 226345, 271614, 316883, 327810, 388020, 452690, 543228, 633766, 655620, 679035, 905380, 950649, 1267532, 1358070, 1584415, 1901298, 2716140, 3168830, 3802596, 4753245, 6337660, 9506490, 19012980]

約数ペア:

[(1, 19012980), (2, 9506490), (3, 6337660), (4, 4753245), (5, 3802596), (6, 3168830), (7, 2716140), (10, 1901298), (12, 1584415), (14, 1358070), (15, 1267532), (20, 950649), (21, 905380), (28, 679035), (29, 655620), (30, 633766), (35, 543228), (42, 452690), (49, 388020), (58, 327810), (60, 316883), (70, 271614), (84, 226345), (87, 218540), (98, 194010), (105, 181076), (116, 163905), (140, 135807), (145, 131124), (147, 129340), (174, 109270), (196, 97005), (203, 93660), (210, 90538), (223, 85260), (245, 77604), (290, 65562), (294, 64670), (348, 54635), (406, 46830), (420, 45269), (435, 43708), (446, 42630), (490, 38802), (580, 32781), (588, 32335), (609, 31220), (669, 28420), (735, 25868), (812, 23415), (870, 21854), (892, 21315), (980, 19401), (1015, 18732), (1115, 17052), (1218, 15610), (1338, 14210), (1421, 13380), (1470, 12934), (1561, 12180), (1740, 10927), (2030, 9366), (2230, 8526), (2436, 7805), (2676, 7105), (2842, 6690), (2940, 6467), (3045, 6244), (3122, 6090), (3345, 5684), (4060, 4683), (4263, 4460)]