28389738

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1$

素因数の和:307

約数の個数: 64

約数和(自身を含む): 64512000

約数和(自身を除く): 36122262

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 59, 62, 78, 93, 118, 177, 186, 199, 354, 398, 403, 597, 767, 806, 1194, 1209, 1534, 1829, 2301, 2418, 2587, 3658, 4602, 5174, 5487, 6169, 7761, 10974, 11741, 12338, 15522, 18507, 23482, 23777, 35223, 37014, 47554, 70446, 71331, 80197, 142662, 152633, 160394, 240591, 305266, 363971, 457899, 481182, 727942, 915798, 1091913, 2183826, 4731623, 9463246, 14194869, 28389738]

約数ペア:

[(1, 28389738), (2, 14194869), (3, 9463246), (6, 4731623), (13, 2183826), (26, 1091913), (31, 915798), (39, 727942), (59, 481182), (62, 457899), (78, 363971), (93, 305266), (118, 240591), (177, 160394), (186, 152633), (199, 142662), (354, 80197), (398, 71331), (403, 70446), (597, 47554), (767, 37014), (806, 35223), (1194, 23777), (1209, 23482), (1534, 18507), (1829, 15522), (2301, 12338), (2418, 11741), (2587, 10974), (3658, 7761), (4602, 6169), (5174, 5487)]