388519980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:280

約数の個数: 192

約数和(自身を含む): 1203256320

約数和(自身を除く): 814736340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 37, 38, 57, 60, 61, 74, 76, 95, 111, 114, 122, 148, 151, 183, 185, 190, 222, 228, 244, 285, 302, 305, 366, 370, 380, 444, 453, 555, 570, 604, 610, 703, 732, 740, 755, 906, 915, 1110, 1140, 1159, 1220, 1406, 1510, 1812, 1830, 2109, 2220, 2257, 2265, 2318, 2812, 2869, 3020, 3477, 3515, 3660, 4218, 4514, 4530, 4636, 5587, 5738, 5795, 6771, 6954, 7030, 8436, 8607, 9028, 9060, 9211, 10545, 11174, 11285, 11476, 11590, 13542, 13908, 14060, 14345, 16761, 17214, 17385, 18422, 21090, 22348, 22570, 23180, 27084, 27633, 27935, 28690, 33522, 33855, 34428, 34770, 36844, 42180, 42883, 43035, 45140, 46055, 55266, 55870, 57380, 67044, 67710, 69540, 83805, 85766, 86070, 92110, 106153, 110532, 111740, 128649, 135420, 138165, 167610, 171532, 172140, 175009, 184220, 212306, 214415, 257298, 276330, 318459, 335220, 340807, 350018, 424612, 428830, 514596, 525027, 530765, 552660, 636918, 643245, 681614, 700036, 857660, 875045, 1022421, 1050054, 1061530, 1273836, 1286490, 1363228, 1592295, 1704035, 1750090, 2044842, 2100108, 2123060, 2572980, 2625135, 3184590, 3408070, 3500180, 4089684, 5112105, 5250270, 6369180, 6475333, 6816140, 10224210, 10500540, 12950666, 19425999, 20448420, 25901332, 32376665, 38851998, 64753330, 77703996, 97129995, 129506660, 194259990, 388519980]

約数ペア:

[(1, 388519980), (2, 194259990), (3, 129506660), (4, 97129995), (5, 77703996), (6, 64753330), (10, 38851998), (12, 32376665), (15, 25901332), (19, 20448420), (20, 19425999), (30, 12950666), (37, 10500540), (38, 10224210), (57, 6816140), (60, 6475333), (61, 6369180), (74, 5250270), (76, 5112105), (95, 4089684), (111, 3500180), (114, 3408070), (122, 3184590), (148, 2625135), (151, 2572980), (183, 2123060), (185, 2100108), (190, 2044842), (222, 1750090), (228, 1704035), (244, 1592295), (285, 1363228), (302, 1286490), (305, 1273836), (366, 1061530), (370, 1050054), (380, 1022421), (444, 875045), (453, 857660), (555, 700036), (570, 681614), (604, 643245), (610, 636918), (703, 552660), (732, 530765), (740, 525027), (755, 514596), (906, 428830), (915, 424612), (1110, 350018), (1140, 340807), (1159, 335220), (1220, 318459), (1406, 276330), (1510, 257298), (1812, 214415), (1830, 212306), (2109, 184220), (2220, 175009), (2257, 172140), (2265, 171532), (2318, 167610), (2812, 138165), (2869, 135420), (3020, 128649), (3477, 111740), (3515, 110532), (3660, 106153), (4218, 92110), (4514, 86070), (4530, 85766), (4636, 83805), (5587, 69540), (5738, 67710), (5795, 67044), (6771, 57380), (6954, 55870), (7030, 55266), (8436, 46055), (8607, 45140), (9028, 43035), (9060, 42883), (9211, 42180), (10545, 36844), (11174, 34770), (11285, 34428), (11476, 33855), (11590, 33522), (13542, 28690), (13908, 27935), (14060, 27633), (14345, 27084), (16761, 23180), (17214, 22570), (17385, 22348), (18422, 21090)]