821743020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{761}}^1\times {\mathrm{857}}^1$

素因数の和:1640

約数の個数: 144

約数和(自身を含む): 2855780928

約数和(自身を除く): 2034037908

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 761, 857, 1260, 1522, 1714, 2283, 2571, 3044, 3428, 3805, 4285, 4566, 5142, 5327, 5999, 6849, 7610, 7713, 8570, 9132, 10284, 10654, 11415, 11998, 12855, 13698, 15220, 15426, 15981, 17140, 17997, 21308, 22830, 23996, 25710, 26635, 27396, 29995, 30852, 31962, 34245, 35994, 38565, 45660, 47943, 51420, 53270, 53991, 59990, 63924, 68490, 71988, 77130, 79905, 89985, 95886, 106540, 107982, 119980, 136980, 154260, 159810, 179970, 191772, 215964, 239715, 269955, 319620, 359940, 479430, 539910, 652177, 958860, 1079820, 1304354, 1956531, 2608708, 3260885, 3913062, 4565239, 5869593, 6521770, 7826124, 9130478, 9782655, 11739186, 13043540, 13695717, 18260956, 19565310, 22826195, 23478372, 27391434, 29347965, 39130620, 41087151, 45652390, 54782868, 58695930, 68478585, 82174302, 91304780, 117391860, 136957170, 164348604, 205435755, 273914340, 410871510, 821743020]

約数ペア:

[(1, 821743020), (2, 410871510), (3, 273914340), (4, 205435755), (5, 164348604), (6, 136957170), (7, 117391860), (9, 91304780), (10, 82174302), (12, 68478585), (14, 58695930), (15, 54782868), (18, 45652390), (20, 41087151), (21, 39130620), (28, 29347965), (30, 27391434), (35, 23478372), (36, 22826195), (42, 19565310), (45, 18260956), (60, 13695717), (63, 13043540), (70, 11739186), (84, 9782655), (90, 9130478), (105, 7826124), (126, 6521770), (140, 5869593), (180, 4565239), (210, 3913062), (252, 3260885), (315, 2608708), (420, 1956531), (630, 1304354), (761, 1079820), (857, 958860), (1260, 652177), (1522, 539910), (1714, 479430), (2283, 359940), (2571, 319620), (3044, 269955), (3428, 239715), (3805, 215964), (4285, 191772), (4566, 179970), (5142, 159810), (5327, 154260), (5999, 136980), (6849, 119980), (7610, 107982), (7713, 106540), (8570, 95886), (9132, 89985), (10284, 79905), (10654, 77130), (11415, 71988), (11998, 68490), (12855, 63924), (13698, 59990), (15220, 53991), (15426, 53270), (15981, 51420), (17140, 47943), (17997, 45660), (21308, 38565), (22830, 35994), (23996, 34245), (25710, 31962), (26635, 30852), (27396, 29995)]