161967780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3643}}^1$

素因数の和:3690

約数の個数: 144

約数和(自身を含む): 557094720

約数和(自身を除く): 395126940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 36, 38, 39, 45, 52, 57, 60, 65, 76, 78, 90, 95, 114, 117, 130, 156, 171, 180, 190, 195, 228, 234, 247, 260, 285, 342, 380, 390, 468, 494, 570, 585, 684, 741, 780, 855, 988, 1140, 1170, 1235, 1482, 1710, 2223, 2340, 2470, 2964, 3420, 3643, 3705, 4446, 4940, 7286, 7410, 8892, 10929, 11115, 14572, 14820, 18215, 21858, 22230, 32787, 36430, 43716, 44460, 47359, 54645, 65574, 69217, 72860, 94718, 109290, 131148, 138434, 142077, 163935, 189436, 207651, 218580, 236795, 276868, 284154, 327870, 346085, 415302, 426231, 473590, 568308, 622953, 655740, 692170, 710385, 830604, 852462, 899821, 947180, 1038255, 1245906, 1384340, 1420770, 1704924, 1799642, 2076510, 2131155, 2491812, 2699463, 2841540, 3114765, 3599284, 4153020, 4262310, 4499105, 5398926, 6229530, 8098389, 8524620, 8998210, 10797852, 12459060, 13497315, 16196778, 17996420, 26994630, 32393556, 40491945, 53989260, 80983890, 161967780]

約数ペア:

[(1, 161967780), (2, 80983890), (3, 53989260), (4, 40491945), (5, 32393556), (6, 26994630), (9, 17996420), (10, 16196778), (12, 13497315), (13, 12459060), (15, 10797852), (18, 8998210), (19, 8524620), (20, 8098389), (26, 6229530), (30, 5398926), (36, 4499105), (38, 4262310), (39, 4153020), (45, 3599284), (52, 3114765), (57, 2841540), (60, 2699463), (65, 2491812), (76, 2131155), (78, 2076510), (90, 1799642), (95, 1704924), (114, 1420770), (117, 1384340), (130, 1245906), (156, 1038255), (171, 947180), (180, 899821), (190, 852462), (195, 830604), (228, 710385), (234, 692170), (247, 655740), (260, 622953), (285, 568308), (342, 473590), (380, 426231), (390, 415302), (468, 346085), (494, 327870), (570, 284154), (585, 276868), (684, 236795), (741, 218580), (780, 207651), (855, 189436), (988, 163935), (1140, 142077), (1170, 138434), (1235, 131148), (1482, 109290), (1710, 94718), (2223, 72860), (2340, 69217), (2470, 65574), (2964, 54645), (3420, 47359), (3643, 44460), (3705, 43716), (4446, 36430), (4940, 32787), (7286, 22230), (7410, 21858), (8892, 18215), (10929, 14820), (11115, 14572)]