338275720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:503

約数の個数: 128

約数和(自身を含む): 850176000

約数和(自身を除く): 511900280

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 29, 31, 40, 46, 58, 62, 92, 115, 116, 124, 145, 155, 184, 230, 232, 248, 290, 310, 409, 460, 580, 620, 667, 713, 818, 899, 920, 1160, 1240, 1334, 1426, 1636, 1798, 2045, 2668, 2852, 3272, 3335, 3565, 3596, 4090, 4495, 5336, 5704, 6670, 7130, 7192, 8180, 8990, 9407, 11861, 12679, 13340, 14260, 16360, 17980, 18814, 20677, 23722, 25358, 26680, 28520, 35960, 37628, 41354, 47035, 47444, 50716, 59305, 63395, 75256, 82708, 94070, 94888, 101432, 103385, 118610, 126790, 165416, 188140, 206770, 237220, 253580, 272803, 291617, 367691, 376280, 413540, 474440, 507160, 545606, 583234, 735382, 827080, 1091212, 1166468, 1364015, 1458085, 1470764, 1838455, 2182424, 2332936, 2728030, 2916170, 2941528, 3676910, 5456060, 5832340, 7353820, 8456893, 10912120, 11664680, 14707640, 16913786, 33827572, 42284465, 67655144, 84568930, 169137860, 338275720]

約数ペア:

[(1, 338275720), (2, 169137860), (4, 84568930), (5, 67655144), (8, 42284465), (10, 33827572), (20, 16913786), (23, 14707640), (29, 11664680), (31, 10912120), (40, 8456893), (46, 7353820), (58, 5832340), (62, 5456060), (92, 3676910), (115, 2941528), (116, 2916170), (124, 2728030), (145, 2332936), (155, 2182424), (184, 1838455), (230, 1470764), (232, 1458085), (248, 1364015), (290, 1166468), (310, 1091212), (409, 827080), (460, 735382), (580, 583234), (620, 545606), (667, 507160), (713, 474440), (818, 413540), (899, 376280), (920, 367691), (1160, 291617), (1240, 272803), (1334, 253580), (1426, 237220), (1636, 206770), (1798, 188140), (2045, 165416), (2668, 126790), (2852, 118610), (3272, 103385), (3335, 101432), (3565, 94888), (3596, 94070), (4090, 82708), (4495, 75256), (5336, 63395), (5704, 59305), (6670, 50716), (7130, 47444), (7192, 47035), (8180, 41354), (8990, 37628), (9407, 35960), (11861, 28520), (12679, 26680), (13340, 25358), (14260, 23722), (16360, 20677), (17980, 18814)]