78567540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:266

約数の個数: 144

約数和(自身を含む): 245089152

約数和(自身を除く): 166521612

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 23, 30, 34, 46, 51, 60, 68, 69, 85, 92, 102, 115, 138, 170, 197, 204, 230, 255, 276, 289, 340, 345, 391, 394, 460, 510, 578, 591, 690, 782, 788, 867, 985, 1020, 1156, 1173, 1182, 1380, 1445, 1564, 1734, 1955, 1970, 2346, 2364, 2890, 2955, 3349, 3468, 3910, 3940, 4335, 4531, 4692, 5780, 5865, 5910, 6647, 6698, 7820, 8670, 9062, 10047, 11730, 11820, 13294, 13396, 13593, 16745, 17340, 18124, 19941, 20094, 22655, 23460, 26588, 27186, 33235, 33490, 39882, 40188, 45310, 50235, 54372, 56933, 66470, 66980, 67965, 77027, 79764, 90620, 99705, 100470, 113866, 132940, 135930, 154054, 170799, 199410, 200940, 227732, 231081, 271860, 284665, 308108, 341598, 385135, 398820, 462162, 569330, 683196, 770270, 853995, 924324, 1138660, 1155405, 1309459, 1540540, 1707990, 2310810, 2618918, 3415980, 3928377, 4621620, 5237836, 6547295, 7856754, 13094590, 15713508, 19641885, 26189180, 39283770, 78567540]

約数ペア:

[(1, 78567540), (2, 39283770), (3, 26189180), (4, 19641885), (5, 15713508), (6, 13094590), (10, 7856754), (12, 6547295), (15, 5237836), (17, 4621620), (20, 3928377), (23, 3415980), (30, 2618918), (34, 2310810), (46, 1707990), (51, 1540540), (60, 1309459), (68, 1155405), (69, 1138660), (85, 924324), (92, 853995), (102, 770270), (115, 683196), (138, 569330), (170, 462162), (197, 398820), (204, 385135), (230, 341598), (255, 308108), (276, 284665), (289, 271860), (340, 231081), (345, 227732), (391, 200940), (394, 199410), (460, 170799), (510, 154054), (578, 135930), (591, 132940), (690, 113866), (782, 100470), (788, 99705), (867, 90620), (985, 79764), (1020, 77027), (1156, 67965), (1173, 66980), (1182, 66470), (1380, 56933), (1445, 54372), (1564, 50235), (1734, 45310), (1955, 40188), (1970, 39882), (2346, 33490), (2364, 33235), (2890, 27186), (2955, 26588), (3349, 23460), (3468, 22655), (3910, 20094), (3940, 19941), (4335, 18124), (4531, 17340), (4692, 16745), (5780, 13593), (5865, 13396), (5910, 13294), (6647, 11820), (6698, 11730), (7820, 10047), (8670, 9062)]