77181990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:186

約数の個数: 128

約数和(自身を含む): 206807040

約数和(自身を除く): 129625050

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 43, 47, 57, 67, 86, 94, 95, 114, 129, 134, 141, 190, 201, 215, 235, 258, 282, 285, 335, 402, 430, 470, 570, 645, 670, 705, 817, 893, 1005, 1273, 1290, 1410, 1634, 1786, 2010, 2021, 2451, 2546, 2679, 2881, 3149, 3819, 4042, 4085, 4465, 4902, 5358, 5762, 6063, 6298, 6365, 7638, 8170, 8643, 8930, 9447, 10105, 12126, 12255, 12730, 13395, 14405, 15745, 17286, 18894, 19095, 20210, 24510, 26790, 28810, 30315, 31490, 38190, 38399, 43215, 47235, 54739, 59831, 60630, 76798, 86430, 94470, 109478, 115197, 119662, 135407, 164217, 179493, 191995, 230394, 270814, 273695, 299155, 328434, 358986, 383990, 406221, 547390, 575985, 598310, 677035, 812442, 821085, 897465, 1151970, 1354070, 1642170, 1794930, 2031105, 2572733, 4062210, 5145466, 7718199, 12863665, 15436398, 25727330, 38590995, 77181990]

約数ペア:

[(1, 77181990), (2, 38590995), (3, 25727330), (5, 15436398), (6, 12863665), (10, 7718199), (15, 5145466), (19, 4062210), (30, 2572733), (38, 2031105), (43, 1794930), (47, 1642170), (57, 1354070), (67, 1151970), (86, 897465), (94, 821085), (95, 812442), (114, 677035), (129, 598310), (134, 575985), (141, 547390), (190, 406221), (201, 383990), (215, 358986), (235, 328434), (258, 299155), (282, 273695), (285, 270814), (335, 230394), (402, 191995), (430, 179493), (470, 164217), (570, 135407), (645, 119662), (670, 115197), (705, 109478), (817, 94470), (893, 86430), (1005, 76798), (1273, 60630), (1290, 59831), (1410, 54739), (1634, 47235), (1786, 43215), (2010, 38399), (2021, 38190), (2451, 31490), (2546, 30315), (2679, 28810), (2881, 26790), (3149, 24510), (3819, 20210), (4042, 19095), (4085, 18894), (4465, 17286), (4902, 15745), (5358, 14405), (5762, 13395), (6063, 12730), (6298, 12255), (6365, 12126), (7638, 10105), (8170, 9447), (8643, 8930)]