28107380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:118

約数の個数: 144

約数和(自身を含む): 75841920

約数和(自身を除く): 47734540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 29, 35, 43, 46, 49, 58, 70, 86, 92, 98, 115, 116, 140, 145, 161, 172, 196, 203, 215, 230, 245, 290, 301, 322, 406, 430, 460, 490, 580, 602, 644, 667, 805, 812, 860, 980, 989, 1015, 1127, 1204, 1247, 1334, 1421, 1505, 1610, 1978, 2030, 2107, 2254, 2494, 2668, 2842, 3010, 3220, 3335, 3956, 4060, 4214, 4508, 4669, 4945, 4988, 5635, 5684, 6020, 6235, 6670, 6923, 7105, 8428, 8729, 9338, 9890, 10535, 11270, 12470, 13340, 13846, 14210, 17458, 18676, 19780, 21070, 22540, 23345, 24940, 27692, 28420, 28681, 32683, 34615, 34916, 42140, 43645, 46690, 48461, 57362, 61103, 65366, 69230, 87290, 93380, 96922, 114724, 122206, 130732, 138460, 143405, 163415, 174580, 193844, 200767, 242305, 244412, 286810, 305515, 326830, 401534, 484610, 573620, 611030, 653660, 803068, 969220, 1003835, 1222060, 1405369, 2007670, 2810738, 4015340, 5621476, 7026845, 14053690, 28107380]

約数ペア:

[(1, 28107380), (2, 14053690), (4, 7026845), (5, 5621476), (7, 4015340), (10, 2810738), (14, 2007670), (20, 1405369), (23, 1222060), (28, 1003835), (29, 969220), (35, 803068), (43, 653660), (46, 611030), (49, 573620), (58, 484610), (70, 401534), (86, 326830), (92, 305515), (98, 286810), (115, 244412), (116, 242305), (140, 200767), (145, 193844), (161, 174580), (172, 163415), (196, 143405), (203, 138460), (215, 130732), (230, 122206), (245, 114724), (290, 96922), (301, 93380), (322, 87290), (406, 69230), (430, 65366), (460, 61103), (490, 57362), (580, 48461), (602, 46690), (644, 43645), (667, 42140), (805, 34916), (812, 34615), (860, 32683), (980, 28681), (989, 28420), (1015, 27692), (1127, 24940), (1204, 23345), (1247, 22540), (1334, 21070), (1421, 19780), (1505, 18676), (1610, 17458), (1978, 14210), (2030, 13846), (2107, 13340), (2254, 12470), (2494, 11270), (2668, 10535), (2842, 9890), (3010, 9338), (3220, 8729), (3335, 8428), (3956, 7105), (4060, 6923), (4214, 6670), (4508, 6235), (4669, 6020), (4945, 5684), (4988, 5635)]