78340420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:293

約数の個数: 96

約数和(自身を含む): 187125120

約数和(自身を除く): 108784700

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 67, 68, 76, 85, 95, 134, 170, 181, 190, 268, 323, 335, 340, 362, 380, 646, 670, 724, 905, 1139, 1273, 1292, 1340, 1615, 1810, 2278, 2546, 3077, 3230, 3439, 3620, 4556, 5092, 5695, 6154, 6365, 6460, 6878, 11390, 12127, 12308, 12730, 13756, 15385, 17195, 21641, 22780, 24254, 25460, 30770, 34390, 43282, 48508, 58463, 60635, 61540, 68780, 86564, 108205, 116926, 121270, 206159, 216410, 230413, 233852, 242540, 292315, 412318, 432820, 460826, 584630, 824636, 921652, 1030795, 1152065, 1169260, 2061590, 2304130, 3917021, 4123180, 4608260, 7834042, 15668084, 19585105, 39170210, 78340420]

約数ペア:

[(1, 78340420), (2, 39170210), (4, 19585105), (5, 15668084), (10, 7834042), (17, 4608260), (19, 4123180), (20, 3917021), (34, 2304130), (38, 2061590), (67, 1169260), (68, 1152065), (76, 1030795), (85, 921652), (95, 824636), (134, 584630), (170, 460826), (181, 432820), (190, 412318), (268, 292315), (323, 242540), (335, 233852), (340, 230413), (362, 216410), (380, 206159), (646, 121270), (670, 116926), (724, 108205), (905, 86564), (1139, 68780), (1273, 61540), (1292, 60635), (1340, 58463), (1615, 48508), (1810, 43282), (2278, 34390), (2546, 30770), (3077, 25460), (3230, 24254), (3439, 22780), (3620, 21641), (4556, 17195), (5092, 15385), (5695, 13756), (6154, 12730), (6365, 12308), (6460, 12127), (6878, 11390)]