20199867100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1171}}^1\times {\mathrm{1297}}^1$

素因数の和:2508

約数の個数: 144

約数和(自身を含む): 52818008320

約数和(自身を除く): 32618141220

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 35, 38, 50, 70, 76, 95, 100, 133, 140, 175, 190, 266, 350, 380, 475, 532, 665, 700, 950, 1171, 1297, 1330, 1900, 2342, 2594, 2660, 3325, 4684, 5188, 5855, 6485, 6650, 8197, 9079, 11710, 12970, 13300, 16394, 18158, 22249, 23420, 24643, 25940, 29275, 32425, 32788, 36316, 40985, 44498, 45395, 49286, 58550, 64850, 81970, 88996, 90790, 98572, 111245, 117100, 123215, 129700, 155743, 163940, 172501, 181580, 204925, 222490, 226975, 246430, 311486, 345002, 409850, 444980, 453950, 492860, 556225, 616075, 622972, 690004, 778715, 819700, 862505, 907900, 1112450, 1232150, 1518787, 1557430, 1725010, 2224900, 2464300, 3037574, 3114860, 3450020, 3893575, 4312525, 6075148, 7593935, 7787150, 8625050, 10631509, 15187870, 15574300, 17250100, 21263018, 28856953, 30375740, 37969675, 42526036, 53157545, 57713906, 75939350, 106315090, 115427812, 144284765, 151878700, 201998671, 212630180, 265787725, 288569530, 403997342, 531575450, 577139060, 721423825, 807994684, 1009993355, 1063150900, 1442847650, 2019986710, 2885695300, 4039973420, 5049966775, 10099933550, 20199867100]

約数ペア:

[(1, 20199867100), (2, 10099933550), (4, 5049966775), (5, 4039973420), (7, 2885695300), (10, 2019986710), (14, 1442847650), (19, 1063150900), (20, 1009993355), (25, 807994684), (28, 721423825), (35, 577139060), (38, 531575450), (50, 403997342), (70, 288569530), (76, 265787725), (95, 212630180), (100, 201998671), (133, 151878700), (140, 144284765), (175, 115427812), (190, 106315090), (266, 75939350), (350, 57713906), (380, 53157545), (475, 42526036), (532, 37969675), (665, 30375740), (700, 28856953), (950, 21263018), (1171, 17250100), (1297, 15574300), (1330, 15187870), (1900, 10631509), (2342, 8625050), (2594, 7787150), (2660, 7593935), (3325, 6075148), (4684, 4312525), (5188, 3893575), (5855, 3450020), (6485, 3114860), (6650, 3037574), (8197, 2464300), (9079, 2224900), (11710, 1725010), (12970, 1557430), (13300, 1518787), (16394, 1232150), (18158, 1112450), (22249, 907900), (23420, 862505), (24643, 819700), (25940, 778715), (29275, 690004), (32425, 622972), (32788, 616075), (36316, 556225), (40985, 492860), (44498, 453950), (45395, 444980), (49286, 409850), (58550, 345002), (64850, 311486), (81970, 246430), (88996, 226975), (90790, 222490), (98572, 204925), (111245, 181580), (117100, 172501), (123215, 163940), (129700, 155743)]