61540640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2389}}^1$

素因数の和:2434

約数の個数: 96

約数和(自身を含む): 173456640

約数和(自身を除く): 111916000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 160, 161, 184, 224, 230, 280, 322, 368, 460, 560, 644, 736, 805, 920, 1120, 1288, 1610, 1840, 2389, 2576, 3220, 3680, 4778, 5152, 6440, 9556, 11945, 12880, 16723, 19112, 23890, 25760, 33446, 38224, 47780, 54947, 66892, 76448, 83615, 95560, 109894, 133784, 167230, 191120, 219788, 267568, 274735, 334460, 382240, 384629, 439576, 535136, 549470, 668920, 769258, 879152, 1098940, 1337840, 1538516, 1758304, 1923145, 2197880, 2675680, 3077032, 3846290, 4395760, 6154064, 7692580, 8791520, 12308128, 15385160, 30770320, 61540640]

約数ペア:

[(1, 61540640), (2, 30770320), (4, 15385160), (5, 12308128), (7, 8791520), (8, 7692580), (10, 6154064), (14, 4395760), (16, 3846290), (20, 3077032), (23, 2675680), (28, 2197880), (32, 1923145), (35, 1758304), (40, 1538516), (46, 1337840), (56, 1098940), (70, 879152), (80, 769258), (92, 668920), (112, 549470), (115, 535136), (140, 439576), (160, 384629), (161, 382240), (184, 334460), (224, 274735), (230, 267568), (280, 219788), (322, 191120), (368, 167230), (460, 133784), (560, 109894), (644, 95560), (736, 83615), (805, 76448), (920, 66892), (1120, 54947), (1288, 47780), (1610, 38224), (1840, 33446), (2389, 25760), (2576, 23890), (3220, 19112), (3680, 16723), (4778, 12880), (5152, 11945), (6440, 9556)]