20183927620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{769}}^1$

素因数の和:1070

約数の個数: 144

約数和(自身を含む): 47656224000

約数和(自身を除く): 27472296380

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 239, 289, 323, 340, 380, 478, 578, 646, 769, 956, 1156, 1195, 1292, 1445, 1538, 1615, 2390, 2890, 3076, 3230, 3845, 4063, 4541, 4780, 5491, 5780, 6460, 7690, 8126, 9082, 10982, 13073, 14611, 15380, 16252, 18164, 20315, 21964, 22705, 26146, 27455, 29222, 40630, 45410, 52292, 54910, 58444, 65365, 69071, 73055, 77197, 81260, 90820, 109820, 130730, 138142, 146110, 154394, 183791, 222241, 248387, 261460, 276284, 292220, 308788, 345355, 367582, 385985, 444482, 496774, 690710, 735164, 771970, 888964, 918955, 993548, 1111205, 1241935, 1312349, 1381420, 1543940, 1837910, 2222410, 2483870, 2624698, 3124447, 3492029, 3675820, 4222579, 4444820, 4967740, 5249396, 6248894, 6561745, 6984058, 8445158, 12497788, 13123490, 13968116, 15622235, 16890316, 17460145, 21112895, 26246980, 31244470, 34920290, 42225790, 53115599, 59364493, 62488940, 69840580, 84451580, 106231198, 118728986, 212462396, 237457972, 265577995, 296822465, 531155990, 593644930, 1009196381, 1062311980, 1187289860, 2018392762, 4036785524, 5045981905, 10091963810, 20183927620]

約数ペア:

[(1, 20183927620), (2, 10091963810), (4, 5045981905), (5, 4036785524), (10, 2018392762), (17, 1187289860), (19, 1062311980), (20, 1009196381), (34, 593644930), (38, 531155990), (68, 296822465), (76, 265577995), (85, 237457972), (95, 212462396), (170, 118728986), (190, 106231198), (239, 84451580), (289, 69840580), (323, 62488940), (340, 59364493), (380, 53115599), (478, 42225790), (578, 34920290), (646, 31244470), (769, 26246980), (956, 21112895), (1156, 17460145), (1195, 16890316), (1292, 15622235), (1445, 13968116), (1538, 13123490), (1615, 12497788), (2390, 8445158), (2890, 6984058), (3076, 6561745), (3230, 6248894), (3845, 5249396), (4063, 4967740), (4541, 4444820), (4780, 4222579), (5491, 3675820), (5780, 3492029), (6460, 3124447), (7690, 2624698), (8126, 2483870), (9082, 2222410), (10982, 1837910), (13073, 1543940), (14611, 1381420), (15380, 1312349), (16252, 1241935), (18164, 1111205), (20315, 993548), (21964, 918955), (22705, 888964), (26146, 771970), (27455, 735164), (29222, 690710), (40630, 496774), (45410, 444482), (52292, 385985), (54910, 367582), (58444, 345355), (65365, 308788), (69071, 292220), (73055, 276284), (77197, 261460), (81260, 248387), (90820, 222241), (109820, 183791), (130730, 154394), (138142, 146110)]