20843700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:162

約数の個数: 144

約数和(自身を含む): 65870784

約数和(自身を除く): 45027084

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 25, 30, 34, 50, 51, 60, 61, 67, 68, 75, 85, 100, 102, 122, 134, 150, 170, 183, 201, 204, 244, 255, 268, 300, 305, 335, 340, 366, 402, 425, 510, 610, 670, 732, 804, 850, 915, 1005, 1020, 1037, 1139, 1220, 1275, 1340, 1525, 1675, 1700, 1830, 2010, 2074, 2278, 2550, 3050, 3111, 3350, 3417, 3660, 4020, 4087, 4148, 4556, 4575, 5025, 5100, 5185, 5695, 6100, 6222, 6700, 6834, 8174, 9150, 10050, 10370, 11390, 12261, 12444, 13668, 15555, 16348, 17085, 18300, 20100, 20435, 20740, 22780, 24522, 25925, 28475, 31110, 34170, 40870, 49044, 51850, 56950, 61305, 62220, 68340, 69479, 77775, 81740, 85425, 102175, 103700, 113900, 122610, 138958, 155550, 170850, 204350, 208437, 245220, 277916, 306525, 311100, 341700, 347395, 408700, 416874, 613050, 694790, 833748, 1042185, 1226100, 1389580, 1736975, 2084370, 3473950, 4168740, 5210925, 6947900, 10421850, 20843700]

約数ペア:

[(1, 20843700), (2, 10421850), (3, 6947900), (4, 5210925), (5, 4168740), (6, 3473950), (10, 2084370), (12, 1736975), (15, 1389580), (17, 1226100), (20, 1042185), (25, 833748), (30, 694790), (34, 613050), (50, 416874), (51, 408700), (60, 347395), (61, 341700), (67, 311100), (68, 306525), (75, 277916), (85, 245220), (100, 208437), (102, 204350), (122, 170850), (134, 155550), (150, 138958), (170, 122610), (183, 113900), (201, 103700), (204, 102175), (244, 85425), (255, 81740), (268, 77775), (300, 69479), (305, 68340), (335, 62220), (340, 61305), (366, 56950), (402, 51850), (425, 49044), (510, 40870), (610, 34170), (670, 31110), (732, 28475), (804, 25925), (850, 24522), (915, 22780), (1005, 20740), (1020, 20435), (1037, 20100), (1139, 18300), (1220, 17085), (1275, 16348), (1340, 15555), (1525, 13668), (1675, 12444), (1700, 12261), (1830, 11390), (2010, 10370), (2074, 10050), (2278, 9150), (2550, 8174), (3050, 6834), (3111, 6700), (3350, 6222), (3417, 6100), (3660, 5695), (4020, 5185), (4087, 5100), (4148, 5025), (4556, 4575)]