19956871984

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{1109}}^1$

素因数の和:1299

約数の個数: 160

約数和(自身を含む): 46934138880

約数和(自身を除く): 26977266896

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 71, 73, 112, 124, 142, 146, 217, 248, 284, 292, 434, 496, 497, 511, 568, 584, 868, 994, 1022, 1109, 1136, 1168, 1736, 1988, 2044, 2201, 2218, 2263, 3472, 3976, 4088, 4402, 4436, 4526, 5183, 7763, 7952, 8176, 8804, 8872, 9052, 10366, 15407, 15526, 15841, 17608, 17744, 18104, 20732, 30814, 31052, 31682, 34379, 35216, 36208, 36281, 41464, 61628, 62104, 63364, 68758, 72562, 78739, 80957, 82928, 123256, 124208, 126728, 137516, 145124, 157478, 160673, 161914, 240653, 246512, 253456, 275032, 290248, 314956, 321346, 323828, 481306, 550064, 551173, 566699, 580496, 629912, 642692, 647656, 962612, 1102346, 1124711, 1133398, 1259824, 1285384, 1295312, 1925224, 2204692, 2249422, 2266796, 2440909, 2509667, 2570768, 3850448, 4409384, 4498844, 4533592, 4881818, 5019334, 5747947, 8818768, 8997688, 9067184, 9763636, 10038668, 11495894, 17086363, 17567669, 17995376, 19527272, 20077336, 22991788, 34172726, 35135338, 39054544, 40154672, 40235629, 45983576, 68345452, 70270676, 80471258, 91967152, 136690904, 140541352, 160942516, 178186357, 273381808, 281082704, 321885032, 356372714, 643770064, 712745428, 1247304499, 1425490856, 2494608998, 2850981712, 4989217996, 9978435992, 19956871984]

約数ペア:

[(1, 19956871984), (2, 9978435992), (4, 4989217996), (7, 2850981712), (8, 2494608998), (14, 1425490856), (16, 1247304499), (28, 712745428), (31, 643770064), (56, 356372714), (62, 321885032), (71, 281082704), (73, 273381808), (112, 178186357), (124, 160942516), (142, 140541352), (146, 136690904), (217, 91967152), (248, 80471258), (284, 70270676), (292, 68345452), (434, 45983576), (496, 40235629), (497, 40154672), (511, 39054544), (568, 35135338), (584, 34172726), (868, 22991788), (994, 20077336), (1022, 19527272), (1109, 17995376), (1136, 17567669), (1168, 17086363), (1736, 11495894), (1988, 10038668), (2044, 9763636), (2201, 9067184), (2218, 8997688), (2263, 8818768), (3472, 5747947), (3976, 5019334), (4088, 4881818), (4402, 4533592), (4436, 4498844), (4526, 4409384), (5183, 3850448), (7763, 2570768), (7952, 2509667), (8176, 2440909), (8804, 2266796), (8872, 2249422), (9052, 2204692), (10366, 1925224), (15407, 1295312), (15526, 1285384), (15841, 1259824), (17608, 1133398), (17744, 1124711), (18104, 1102346), (20732, 962612), (30814, 647656), (31052, 642692), (31682, 629912), (34379, 580496), (35216, 566699), (36208, 551173), (36281, 550064), (41464, 481306), (61628, 323828), (62104, 321346), (63364, 314956), (68758, 290248), (72562, 275032), (78739, 253456), (80957, 246512), (82928, 240653), (123256, 161914), (124208, 160673), (126728, 157478), (137516, 145124)]