18973045

素因数分解:

$5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:99

約数の個数: 64

約数和(自身を含む): 30643200

約数和(自身を除く): 11670155

約数列:

[1, 5, 7, 13, 23, 35, 37, 49, 65, 91, 115, 161, 185, 245, 259, 299, 343, 455, 481, 637, 805, 851, 1127, 1295, 1495, 1715, 1813, 2093, 2405, 3185, 3367, 4255, 4459, 5635, 5957, 7889, 9065, 10465, 11063, 12691, 14651, 16835, 22295, 23569, 29785, 39445, 41699, 55315, 63455, 73255, 77441, 102557, 117845, 164983, 208495, 291893, 387205, 512785, 542087, 824915, 1459465, 2710435, 3794609, 18973045]

約数ペア:

[(1, 18973045), (5, 3794609), (7, 2710435), (13, 1459465), (23, 824915), (35, 542087), (37, 512785), (49, 387205), (65, 291893), (91, 208495), (115, 164983), (161, 117845), (185, 102557), (245, 77441), (259, 73255), (299, 63455), (343, 55315), (455, 41699), (481, 39445), (637, 29785), (805, 23569), (851, 22295), (1127, 16835), (1295, 14651), (1495, 12691), (1715, 11063), (1813, 10465), (2093, 9065), (2405, 7889), (3185, 5957), (3367, 5635), (4255, 4459)]