205365420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:241

約数の個数: 216

約数和(自身を含む): 694629936

約数和(自身を除く): 489264516

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 43, 45, 52, 60, 65, 78, 86, 90, 117, 129, 130, 156, 157, 169, 172, 180, 195, 215, 234, 258, 260, 314, 338, 387, 390, 430, 468, 471, 507, 516, 559, 585, 628, 645, 676, 774, 780, 785, 845, 860, 942, 1014, 1118, 1170, 1290, 1413, 1521, 1548, 1570, 1677, 1690, 1884, 1935, 2028, 2041, 2236, 2340, 2355, 2535, 2580, 2795, 2826, 3042, 3140, 3354, 3380, 3870, 4082, 4710, 5031, 5070, 5590, 5652, 6084, 6123, 6708, 6751, 7065, 7267, 7605, 7740, 8164, 8385, 9420, 10062, 10140, 10205, 11180, 12246, 13502, 14130, 14534, 15210, 16770, 18369, 20124, 20253, 20410, 21801, 24492, 25155, 26533, 27004, 28260, 29068, 30420, 30615, 33540, 33755, 36335, 36738, 40506, 40820, 43602, 50310, 53066, 60759, 61230, 65403, 67510, 72670, 73476, 79599, 81012, 87204, 87763, 91845, 100620, 101265, 106132, 109005, 121518, 122460, 130806, 132665, 135020, 145340, 159198, 175526, 183690, 202530, 218010, 238797, 243036, 261612, 263289, 265330, 303795, 318396, 327015, 351052, 367380, 397995, 405060, 436020, 438815, 477594, 526578, 530660, 607590, 654030, 789867, 795990, 877630, 955188, 1053156, 1140919, 1193985, 1215180, 1308060, 1316445, 1579734, 1591980, 1755260, 2281838, 2387970, 2632890, 3159468, 3422757, 3949335, 4563676, 4775940, 5265780, 5704595, 6845514, 7898670, 10268271, 11409190, 13691028, 15797340, 17113785, 20536542, 22818380, 34227570, 41073084, 51341355, 68455140, 102682710, 205365420]

約数ペア:

[(1, 205365420), (2, 102682710), (3, 68455140), (4, 51341355), (5, 41073084), (6, 34227570), (9, 22818380), (10, 20536542), (12, 17113785), (13, 15797340), (15, 13691028), (18, 11409190), (20, 10268271), (26, 7898670), (30, 6845514), (36, 5704595), (39, 5265780), (43, 4775940), (45, 4563676), (52, 3949335), (60, 3422757), (65, 3159468), (78, 2632890), (86, 2387970), (90, 2281838), (117, 1755260), (129, 1591980), (130, 1579734), (156, 1316445), (157, 1308060), (169, 1215180), (172, 1193985), (180, 1140919), (195, 1053156), (215, 955188), (234, 877630), (258, 795990), (260, 789867), (314, 654030), (338, 607590), (387, 530660), (390, 526578), (430, 477594), (468, 438815), (471, 436020), (507, 405060), (516, 397995), (559, 367380), (585, 351052), (628, 327015), (645, 318396), (676, 303795), (774, 265330), (780, 263289), (785, 261612), (845, 243036), (860, 238797), (942, 218010), (1014, 202530), (1118, 183690), (1170, 175526), (1290, 159198), (1413, 145340), (1521, 135020), (1548, 132665), (1570, 130806), (1677, 122460), (1690, 121518), (1884, 109005), (1935, 106132), (2028, 101265), (2041, 100620), (2236, 91845), (2340, 87763), (2355, 87204), (2535, 81012), (2580, 79599), (2795, 73476), (2826, 72670), (3042, 67510), (3140, 65403), (3354, 61230), (3380, 60759), (3870, 53066), (4082, 50310), (4710, 43602), (5031, 40820), (5070, 40506), (5590, 36738), (5652, 36335), (6084, 33755), (6123, 33540), (6708, 30615), (6751, 30420), (7065, 29068), (7267, 28260), (7605, 27004), (7740, 26533), (8164, 25155), (8385, 24492), (9420, 21801), (10062, 20410), (10140, 20253), (10205, 20124), (11180, 18369), (12246, 16770), (13502, 15210), (14130, 14534)]