644684535

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:430

約数の個数: 128

約数和(自身を含む): 1338393600

約数和(自身を除く): 693709065

約数列:

[1, 3, 5, 9, 11, 15, 19, 27, 33, 45, 55, 57, 73, 95, 99, 135, 165, 171, 209, 219, 285, 297, 313, 365, 495, 513, 627, 657, 803, 855, 939, 1045, 1095, 1387, 1485, 1565, 1881, 1971, 2409, 2565, 2817, 3135, 3285, 3443, 4015, 4161, 4695, 5643, 5947, 6935, 7227, 8451, 9405, 9855, 10329, 12045, 12483, 14085, 15257, 17215, 17841, 20805, 21681, 22849, 28215, 29735, 30987, 36135, 37449, 42255, 45771, 51645, 53523, 62415, 65417, 68547, 76285, 89205, 92961, 108405, 114245, 137313, 154935, 160569, 187245, 196251, 205641, 228855, 251339, 267615, 327085, 342735, 411939, 434131, 464805, 588753, 616923, 686565, 754017, 802845, 981255, 1028205, 1256695, 1302393, 1766259, 2059695, 2170655, 2262051, 2943765, 3084615, 3770085, 3907179, 4775441, 6511965, 6786153, 8831295, 11310255, 11721537, 14326323, 19535895, 23877205, 33930765, 42978969, 58607685, 71631615, 128936907, 214894845, 644684535]

約数ペア:

[(1, 644684535), (3, 214894845), (5, 128936907), (9, 71631615), (11, 58607685), (15, 42978969), (19, 33930765), (27, 23877205), (33, 19535895), (45, 14326323), (55, 11721537), (57, 11310255), (73, 8831295), (95, 6786153), (99, 6511965), (135, 4775441), (165, 3907179), (171, 3770085), (209, 3084615), (219, 2943765), (285, 2262051), (297, 2170655), (313, 2059695), (365, 1766259), (495, 1302393), (513, 1256695), (627, 1028205), (657, 981255), (803, 802845), (855, 754017), (939, 686565), (1045, 616923), (1095, 588753), (1387, 464805), (1485, 434131), (1565, 411939), (1881, 342735), (1971, 327085), (2409, 267615), (2565, 251339), (2817, 228855), (3135, 205641), (3285, 196251), (3443, 187245), (4015, 160569), (4161, 154935), (4695, 137313), (5643, 114245), (5947, 108405), (6935, 92961), (7227, 89205), (8451, 76285), (9405, 68547), (9855, 65417), (10329, 62415), (12045, 53523), (12483, 51645), (14085, 45771), (15257, 42255), (17215, 37449), (17841, 36135), (20805, 30987), (21681, 29735), (22849, 28215)]