840435645

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:275

約数の個数: 128

約数和(自身を含む): 1688924160

約数和(自身を除く): 848488515

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 43, 57, 95, 97, 101, 105, 129, 133, 215, 285, 291, 301, 303, 399, 485, 505, 645, 665, 679, 707, 817, 903, 1455, 1505, 1515, 1843, 1919, 1995, 2037, 2121, 2451, 3395, 3535, 4085, 4171, 4343, 4515, 5529, 5719, 5757, 9215, 9595, 9797, 10185, 10605, 12255, 12513, 12901, 13029, 13433, 17157, 20855, 21715, 27645, 28595, 28785, 29197, 29391, 30401, 38703, 40299, 48985, 62565, 64505, 65145, 67165, 68579, 79249, 82517, 85785, 87591, 91203, 145985, 146955, 152005, 186143, 193515, 201495, 205737, 237747, 247551, 342895, 396245, 412585, 421271, 437955, 456015, 554743, 558429, 577619, 930715, 1028685, 1188735, 1237755, 1263813, 1303001, 1664229, 1732857, 2106355, 2773715, 2792145, 2888095, 2948897, 3909003, 6319065, 6515005, 8004149, 8321145, 8664285, 8846691, 14744485, 19545015, 24012447, 40020745, 44233455, 56029043, 120062235, 168087129, 280145215, 840435645]

約数ペア:

[(1, 840435645), (3, 280145215), (5, 168087129), (7, 120062235), (15, 56029043), (19, 44233455), (21, 40020745), (35, 24012447), (43, 19545015), (57, 14744485), (95, 8846691), (97, 8664285), (101, 8321145), (105, 8004149), (129, 6515005), (133, 6319065), (215, 3909003), (285, 2948897), (291, 2888095), (301, 2792145), (303, 2773715), (399, 2106355), (485, 1732857), (505, 1664229), (645, 1303001), (665, 1263813), (679, 1237755), (707, 1188735), (817, 1028685), (903, 930715), (1455, 577619), (1505, 558429), (1515, 554743), (1843, 456015), (1919, 437955), (1995, 421271), (2037, 412585), (2121, 396245), (2451, 342895), (3395, 247551), (3535, 237747), (4085, 205737), (4171, 201495), (4343, 193515), (4515, 186143), (5529, 152005), (5719, 146955), (5757, 145985), (9215, 91203), (9595, 87591), (9797, 85785), (10185, 82517), (10605, 79249), (12255, 68579), (12513, 67165), (12901, 65145), (13029, 64505), (13433, 62565), (17157, 48985), (20855, 40299), (21715, 38703), (27645, 30401), (28595, 29391), (28785, 29197)]