19218420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:262

約数の個数: 144

約数和(自身を含む): 64576512

約数和(自身を除く): 45358092

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, 172, 180, 191, 195, 215, 234, 258, 260, 382, 387, 390, 430, 468, 516, 559, 573, 585, 645, 764, 774, 780, 860, 955, 1118, 1146, 1170, 1290, 1548, 1677, 1719, 1910, 1935, 2236, 2292, 2340, 2483, 2580, 2795, 2865, 3354, 3438, 3820, 3870, 4966, 5031, 5590, 5730, 6708, 6876, 7449, 7740, 8213, 8385, 8595, 9932, 10062, 11180, 11460, 12415, 14898, 16426, 16770, 17190, 20124, 22347, 24639, 24830, 25155, 29796, 32852, 33540, 34380, 37245, 41065, 44694, 49278, 49660, 50310, 73917, 74490, 82130, 89388, 98556, 100620, 106769, 111735, 123195, 147834, 148980, 164260, 213538, 223470, 246390, 295668, 320307, 369585, 427076, 446940, 492780, 533845, 640614, 739170, 960921, 1067690, 1281228, 1478340, 1601535, 1921842, 2135380, 3203070, 3843684, 4804605, 6406140, 9609210, 19218420]

約数ペア:

[(1, 19218420), (2, 9609210), (3, 6406140), (4, 4804605), (5, 3843684), (6, 3203070), (9, 2135380), (10, 1921842), (12, 1601535), (13, 1478340), (15, 1281228), (18, 1067690), (20, 960921), (26, 739170), (30, 640614), (36, 533845), (39, 492780), (43, 446940), (45, 427076), (52, 369585), (60, 320307), (65, 295668), (78, 246390), (86, 223470), (90, 213538), (117, 164260), (129, 148980), (130, 147834), (156, 123195), (172, 111735), (180, 106769), (191, 100620), (195, 98556), (215, 89388), (234, 82130), (258, 74490), (260, 73917), (382, 50310), (387, 49660), (390, 49278), (430, 44694), (468, 41065), (516, 37245), (559, 34380), (573, 33540), (585, 32852), (645, 29796), (764, 25155), (774, 24830), (780, 24639), (860, 22347), (955, 20124), (1118, 17190), (1146, 16770), (1170, 16426), (1290, 14898), (1548, 12415), (1677, 11460), (1719, 11180), (1910, 10062), (1935, 9932), (2236, 8595), (2292, 8385), (2340, 8213), (2483, 7740), (2580, 7449), (2795, 6876), (2865, 6708), (3354, 5730), (3438, 5590), (3820, 5031), (3870, 4966)]