154740220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 343323792

約数和(自身を除く): 188583572

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 97, 124, 155, 166, 194, 310, 332, 388, 415, 485, 620, 830, 961, 970, 1660, 1922, 1940, 2573, 3007, 3844, 4805, 5146, 6014, 8051, 9610, 10292, 12028, 12865, 15035, 16102, 19220, 25730, 30070, 32204, 40255, 51460, 60140, 79763, 80510, 93217, 159526, 161020, 186434, 249581, 319052, 372868, 398815, 466085, 499162, 797630, 932170, 998324, 1247905, 1595260, 1864340, 2495810, 4991620, 7737011, 15474022, 30948044, 38685055, 77370110, 154740220]

約数ペア:

[(1, 154740220), (2, 77370110), (4, 38685055), (5, 30948044), (10, 15474022), (20, 7737011), (31, 4991620), (62, 2495810), (83, 1864340), (97, 1595260), (124, 1247905), (155, 998324), (166, 932170), (194, 797630), (310, 499162), (332, 466085), (388, 398815), (415, 372868), (485, 319052), (620, 249581), (830, 186434), (961, 161020), (970, 159526), (1660, 93217), (1922, 80510), (1940, 79763), (2573, 60140), (3007, 51460), (3844, 40255), (4805, 32204), (5146, 30070), (6014, 25730), (8051, 19220), (9610, 16102), (10292, 15035), (12028, 12865)]